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Fluoride tooth paste helps ... tooth decay.

A. Prevent     B. For preventing     C. Preventing     D. With preventing

8 tháng 6 2019

C. Preventing

3 tháng 2 2020

1. This kind of medicine should soon...... your cough

a. prevent b. solve c. cure d. disappear

2. One way to stop tooth decay is........ less sugar

a. you eat b. to eat c. for eating d. you are eating

3.Fluoride toothpaste helps........ tooth decay

a. prevent b. for preventing c. preventing d. with preventing

4. ........ your teeth with fluoride toothpaste after avery meal is important

a. Brush. b. Brushing c. You brush d. Brushes

5. Unfortunately you cannot sto decay sinply by...... your teeth

a.you brushing. b. to brush. c. brushing. d. brush

3 tháng 2 2020

1. This kind of medicine should soon...... your cough

a. prevent b. solve c. cure d. disappear

2. One way to stop tooth decay is........ less sugar

a. you eat b. to eat c. for eating d. you are eating

3. Fluoride toothpaste helps........ tooth decay

a. prevent b. for preventing c. preventing d. with preventing

4. ........ your teeth with fluoride toothpaste after avery meal is important

a. Brush. b. Brushing c. You brush d. Brushes

5. Unfortunately you cannot sto decay sinply by...... your teeth

a. you brushing. b. to brush. c. brushing. d. brush

Chúc bạn học tốt!

6 tháng 4 2017

1. Đặt câu hỏi cho phần in đậm

She was a little scared when she went to see the dentist

How was she when she went to see the dentist?

2. Chọn đáp án đúng

Mr. Hoa is ........ old customer and ....... honest girl

a. an/an b. the/an c. an/the d. the/the

No one can do it well and ......

a. so can she b. neither can she c. she can't, too d. she can, either

Fluoride toothpaste helps ......... tooth decay

a. with prevent b. for preventing c. preventing d. prevent

It's difficult too cross this street because there is too much .......

a. transport b. crowd c. traffic d. people

Sorry I can't come but thanks ......

a. anyway b. any ways c. any way d. in anyway

6 tháng 4 2017

1. Đặt câu hỏi cho phần in đậm

She was a little scared when she went to see the dentist

>> How was she fell when she went to see the dentist

2. Chọn đáp án đúng

Mr. Hoa is ........ old customer and ....... honest girl

a. a/an b. the/an c. an/the d. the/the

No one can do it well and ......

a. so can she b. neither can she c. she can't, too d. she can, either

Fluoride toothpaste helps ......... tooth decay

a. with prevent b. for preventing c. preventing d. prevent

It's difficult too cross this street because there is too much .......

a. transport b. crowd c. traffic d. people

Sorry I can't come but thanks ......

a. anyway b. any ways c. any way d. in anyway

7 tháng 4 2017

1: c 2:a 3:b 4:d 5:c 6:c! chúc bn hok tốt!

7 tháng 4 2017

mai"...................?" Ln " that a great idea "

aDo you like playing sports b can you buy me some apples c why don't we go out for dinner

d may i borrow your pen

2lan is .............old customer and................honest man

a an/an b the/an c an/the d the/the

3no one can do it well and...............

a so can she b neither can she c she can't too d she can, either

4flouide toothpaste helps ............................... tooth decay (câu này hơi phân vân)

a with prevent

b for preventing

c preventing

d prevent

5 my funny story made the whole class .....................

a smile

b laughing

c laugh

d crying

\6 it is cold you'd ......................wear a coat when you go out

a best

b like

c better

d good

Bài 3: Cho dạng đúng của động từ trong ngoặc để hoàn thành các câu sau. 1. The dentist (fill) ___ the cavity in my tooth and it stopped (hurt) ___ afterwards. 2. (You/ need) ___ another blanker or you (feel) ___ warm enough? 3. - Did you remember (book) ___ seats? - Oh no, I (forget) ___. I (telephone) ___ for them now. 4. - Why are you taking that big basket? - I (buy) ___ a lot of vegetables. 5. I (not, want) ___ to meet Paul so when he went into the room, I (leave)...
Đọc tiếp

Bài 3: Cho dạng đúng của động từ trong ngoặc để hoàn thành các câu sau.

1. The dentist (fill) ___ the cavity in my tooth and it stopped (hurt) ___ afterwards.

2. (You/ need) ___ another blanker or you (feel) ___ warm enough?

3. - Did you remember (book) ___ seats?

- Oh no, I (forget) ___. I (telephone) ___ for them now.

4. - Why are you taking that big basket?

- I (buy) ___ a lot of vegetables.

5. I (not, want) ___ to meet Paul so when he went into the room, I (leave) ___.

Bài 6: Lựa chọn từ hoặc cụm từ phù hợp nhất để hoàn thành các câu sau đây bằng cách khoanh tròn A, B, C hoặc D.

1. Read these sentences about ___ your teeth healthy.

A. keep B. you keep C. to keep D. keeping

2. Do the following things ___ healthy teeth.

A. to have B. having C. for having D. have

3. Avoid ___ a lot of sweet.

A. eating B. to eat C. eat D. for eating

4. It's important ___ tooth decay.

A. avoid B. avoiding C. to avoid D. avoided

5. You can also improve your teeth if ___ healthy food.

A. to have B. having C. you have D. have

6. Unfortunately, you cannot stop tooth decay simply by ___ your teeth.

A. you brush B. brushing C. to brush D. brushed

7. One way to stop tooth decay is ___ less sugar.

A. to eat B. for eating C. you eat D. you are eating

8. Fluoride toothpaste helps ___ tooth decay.

A. preventing B. prevented C. to prevent D. for preventing

9. Many coutries have also started ___ fluoride to drinking water.

A. add B. with adding C. they add D. to add

10. They have proved that fresh fruit ___ teeth healthy.

A. to keep B. keep C. keeps D. keeping

1
31 tháng 3 2018

Bài 3: Cho dạng đúng của động từ trong ngoặc để hoàn thành các câu sau.

1. The dentist (fill) filled the cavity in my tooth and it stopped (hurt) hurting afterwards.

2. (You/ need) Do you need another blanker or you (feel) feel warm enough?

3. - Did you remember (book) booking seats?

- Oh no, I (forget) forgot. I (telephone) will telephone for them now.

4. - Why are you taking that big basket?

- I (buy) am going to buy a lot of vegetables.

5. I (not, want) didn't want to meet Paul so when he went into the room, I (leave) left.

Bài 6: Lựa chọn từ hoặc cụm từ phù hợp nhất để hoàn thành các câu sau đây bằng cách khoanh tròn A, B, C hoặc D.

1. Read these sentences about ___ your teeth healthy.

A. keep B. you keep C. to keep D. keeping

2. Do the following things ___ healthy teeth.

A. to have B. having C. for having D. have

3. Avoid ___ a lot of sweet.

A. eating B. to eat C. eat D. for eating

4. It's important ___ tooth decay.

A. avoid B. avoiding C. to avoid D. avoided

5. You can also improve your teeth if ___ healthy food.

A. to have B. having C. you have D. have

6. Unfortunately, you cannot stop tooth decay simply by ___ your teeth.

A. you brush B. brushing C. to brush D. brushed

7. One way to stop tooth decay is ___ less sugar.

A. to eat B. for eating C. you eat D. you are eating

8. Fluoride toothpaste helps ___ tooth decay.

A. preventing B. prevented C. to prevent D. for preventing

9. Many coutries have also started ___ fluoride to drinking water.

A. add B. with adding C. they add D. to add

10. They have proved that fresh fruit ___ teeth healthy.

A. to keep B. keep C. keeps D. keeping

III. Chọn đáp án thích hợp nhất để điền vào chỗ trống 1. My parents ………. Me to see Ho Chi Minh’s mausoleum last summer a. led b. took c. brought d. directed 2. I’m sure they were …….. lies a. telling b. making c. doing d. saying 3. I’d like to mail this letter …….my friend in the USA a. for b. with c. to d. up to 4. I am …….. that you and your family are well a. pleasant b. pleasing c. pleased d. with pleasure 5. – What is the tall building over there? - ……………… a. Yes...
Đọc tiếp

III. Chọn đáp án thích hợp nhất để điền vào chỗ trống

1. My parents ………. Me to see Ho Chi Minh’s mausoleum last summer

a. led b. took c. brought d. directed

2. I’m sure they were …….. lies

a. telling b. making c. doing d. saying

3. I’d like to mail this letter …….my friend in the USA

a. for b. with c. to d. up to

4. I am …….. that you and your family are well

a. pleasant b. pleasing c. pleased d. with pleasure

5. – What is the tall building over there? - ………………

a. Yes ,it is tall b. No ,it isn’t tall c. Yes ,it is a new library d. It’s the new library

6. We …….. to our new house on January 1st

a. transferred b. got c. removed d. moved

7. I know how to take care …….. myself

a. for b. of c. about d. with

8. Floyride toothpaste helps …….. tooth decay each day

a. prevent b. for preventing c. preventing d. with preventing

9. Wear your hat .It will ………… your head

a. protect b. defend c. secure d. guarantee

10. She added a little salt to the soup so it tasted ……..

a. deliciously b. well c. good d. tastefully

2
24 tháng 4 2017

III. Chọn đáp án thích hợp nhất để điền vào chỗ trống

1. My parents ………. Me to see Ho Chi Minh’s mausoleum last summer

a. led b. took c. brought d. directed

2. I’m sure they were …….. lies

a. telling b. making c. doing d. saying

3. I’d like to mail this letter …….my friend in the USA

a. for b. with c. to d. up to

4. I am …….. that you and your family are well

a. pleasant b. pleasing c. pleased d. with pleasure

5. – What is the tall building over there? - ………………

a. Yes ,it is tall b. No ,it isn’t tall c. Yes ,it is a new library d. It’s the new library

6. We …….. to our new house on January 1st

a. transferred b. got c. removed d. moved

7. I know how to take care …….. myself

a. for b. of c. about d. with

8. Floyride toothpaste helps …….. tooth decay each day

a. prevent b. for preventing c. preventing d. with preventing

9. Wear your hat .It will ………… your head

a. protect b. defend c. secure d. guarantee

10. She added a little salt to the soup so it tasted ……..

a. deliciously b. well c. good d. tastefully

25 tháng 4 2017

1-b ; 2-a ; 3-c ; 4-a ; 5-d ; 6-d ; 7-b ; 8-a ; 9-a; 10-a

baì 1: điền giới từ1. teenagers are concerned ...... the environment2. please took......... my chilldren while i'm working3. we are bored...... watching tv now 4. in a games of singles , two players play ...... each other 5. thanks ...... your invention . it's very useful bài 2: chia động từ1.daddy, cuold you tell me how [run]......... this washing machine ?2. my mother is busy [cook].......... dinner in the kitchenbài 3:1. we ....... to our new house on january 1 sta....
Đọc tiếp

baì 1: điền giới từ

1. teenagers are concerned ...... the environment

2. please took......... my chilldren while i'm working

3. we are bored...... watching tv now 

4. in a games of singles , two players play ...... each other 

5. thanks ...... your invention . it's very useful

 

bài 2: chia động từ

1.daddy, cuold you tell me how [run]......... this washing machine ?

2. my mother is busy [cook].......... dinner in the kitchen

bài 3:

1. we ....... to our new house on january 1 st

a. transfered                 b. got                    c. removed                   d. moved 

2. fluoride toothpaste      helps ......... tooth decay 

a. prevent         b. for preventing                           c. preventing     d. with preventing

3. she added a little salt to the soup so it tasted ......

a. delicously                b. well    c. good  d. tastefully

bai 4

1. why is not this tv working ?

- what ..........

2. hoa and minh didn't go to school yesterday beccause of illness

- hoa and minh were .............

3. can't you do better than that ?

- is that .......

4. it isn't nesscary for students to wear uniforms on wesnesday

- students ..........

5. she feels comfotable to watch tv 

- watching tv ...........

 

 

4
4 tháng 9 2016

Bài 1.

1. Teenagers are concerned with  the environment.

2. Please took care my children while I'm working

3. We are bored with/of watching TV now

4. In a games of singles , two players play with each other

5. Thanks for your invention . It's very useful 

4 tháng 9 2016

Bài 2.

1. Daddy, could you tell me how to run this washing machine

2. My mother is busy cooking dinner in the kitchen

Bài 3. 

1. We moved to our new house on January 1st

2. Fluoride toothpaste helps prevent tooth decay

3. She added a little salt to the soup so it tasted good.

Giúp mình câu này nhoa!!! Tìm từ khác phần in đậm hì... 8. A. practiced B. raised C. noticed D. hoped 9. A. complaint B. compliment C. complete D. contestant 10. A. closet B. globe C. stove D. bowl 11. A. relax B. math C. swap D. area 12. A. depend B. carelessly C. calender D. souvenir 13. A. plays B. says C. days D. stays 14. A. absent B. comb C.crab D. bulb 15. A. result B. season C. desert D. lots III) Choose the word whose stress pattern is different from the other others by...
Đọc tiếp

hihiGiúp mình câu này nhoa!!!

Tìm từ khác phần in đậm hì...

8. A. practiced B. raised C. noticed D. hoped
9. A. complaint B. compliment C. complete D. contestant
10. A. closet B. globe C. stove D. bowl
11. A. relax B. math C. swap D. area
12. A. depend B. carelessly C. calender D. souvenir
13. A. plays B. says C. days D. stays
14. A. absent B. comb C.crab D. bulb
15. A. result B. season C. desert D. lots

III) Choose the word whose stress pattern is different from the other others by circling A, B, C or D: (0,2 x 5 =1 pt)
16. A. anniversary B. entertainment C. volunteer D. experiment
17. A. surgery B. symptom C. material D. cavity
18. A. calendar B. appointment C. expensive D. vacation
19. A. chemistry B. biology C. physics D. history
20. A. receive B. awful C. decide D. disease

SECTION B: VOCABULARY AND GRAMMAR
I. Circle best option A, B, C or D to complete the following sentences: (0,2 x 10 =2 pts)
21. Summer is coming. _______ on _______ way.
A. it’s – its B. its – it C. it’s – it’s D. it’s – it
22. She is looking ________ the children. They’re hiding.
A. at B. for C. after D. around

23. Everyone must remember _________ lies.
A. don’t tell B. not tell C. to not tell D. not to tell
24. I’ll do the job to my best ________.
A. capacity B. knowledge C. talent D. ability
25. Many schools use videos _________ teaching.
A. to B. in C. for D. with
26. My parents _______ me to see Ho Chi Minh’s Mausoleum last summer.
A. led B. took C. brought D. directed
27. I’d like to mail this letter _______ my friend in the USA.
A. for B. with C. to D. up to
28. We _________ to our new house on January 1st.
A. transferred B. got C. removed D. moved
29. Fluoride toothpaste helps _________ tooth decay.
A. prevent B. for preventing C. preventing D. with preventing
30. She added a little salt to the soup so it tasted _______ .
A. deliciously B. well C. good D. tastefully

2
27 tháng 1 2017

Tìm từ khác phần in đậm hì...

8. A. practiced B. raised C. noticed D. hoped
9. A. complaint B. compliment C. complete D. contestant
10. A. closet B. globe C. stove D. bowl
11. A. relax B. math C. swap D. area
12. A. depend B. carelessly C. calender D. souvenir
13. A. plays B. says C. days D. stays
14. A. absent B. comb C.crab D. bulb
15. A. result B. season C. desert D. lots

III) Choose the word whose stress pattern is different from the other others by circling A, B, C or D: (0,2 x 5 =1 pt)
16. A. anniversary B. entertainment C. volunteer D. experiment
17. A. surgery B. symptom C. material D. cavity
18. A. calendar B. appointment C. expensive D. vacation
19. A. chemistry B. biology C. physics D. history
20. A. receive B. awful C. decide D. disease

SECTION B: VOCABULARY AND GRAMMAR
I. Circle best option A, B, C or D to complete the following sentences: (0,2 x 10 =2 pts)
21. Summer is coming. _______ on _______ way.
A. it’s – its B. its – it C. it’s – it’s D. it’s – it
22. She is looking ________ the children. They’re hiding.
A. at B. for C. after D. around

23. Everyone must remember _________ lies.
A. don’t tell B. not tell C. to not tell D. not to tell
24. I’ll do the job to my best ________.
A. capacity B. knowledge C. talent D. ability
25. Many schools use videos _________ teaching.
A. to B. in C. for D. with
26. My parents _______ me to see Ho Chi Minh’s Mausoleum last summer.
A. led B. took C. brought D. directed
27. I’d like to mail this letter _______ my friend in the USA.
A. for B. with C. to D. up to
28. We _________ to our new house on January 1st.
A. transferred B. got C. removed D. moved
29. Fluoride toothpaste helps _________ tooth decay.
A. prevent B. for preventing C. preventing D. with preventing
30. She added a little salt to the soup so it tasted _______ .
A. deliciously B. well C. good D. tastefully

27 tháng 1 2017

8. A. practiced B. raised C. noticed D. hoped
9. A. complaint B. compliment C. complete D. contestant
10. A. closet B. globe C. stove D. bowl
11. A. relax B. math C. swap D. area
12. A. depend B. carelessly C. calender D. souvenir
13. A. plays B. says C. days D. stays
14. A. absent B. comb C.crab D. bulb
15. A. result B. season C. desert D. lots

III) Choose the word whose stress pattern is different from the other others by circling A, B, C or D: (0,2 x 5 =1 pt)
16. A. anniversary B. entertainment C. volunteer D. experiment
17. A. surgery B. symptom C. material D. cavity
18. A. calendar B. appointment C. expensive D. vacation
19. A. chemistry B. biology C. physics D. history
20. A. receive B. awful C. decide D. disease

SECTION B: VOCABULARY AND GRAMMAR
I. Circle best option A, B, C or D to complete the following sentences: (0,2 x 10 =2 pts)
21. Summer is coming. _______ on _______ way.
A. it’s – its B. its – it C. it’s – it’s D. it’s – it
22. She is looking ________ the children. They’re hiding.
A. at B. for C. after D. around

23. Everyone must remember _________ lies.
A. don’t tell B. not tell C. to not tell D. not to tell
24. I’ll do the job to my best ________.
A. capacity B. knowledge C. talent D. ability
25. Many schools use videos _________ teaching.
A. to B. in C. for D. with
26. My parents _______ me to see Ho Chi Minh’s Mausoleum last summer.
A. led B. took C. brought D. directed
27. I’d like to mail this letter _______ my friend in the USA.
A. for B. with C. to D. up to
28. We _________ to our new house on January 1st.
A. transferred B. got C. removed D. moved
29. Fluoride toothpaste helps _________ tooth decay.
A. prevent B. for preventing C. preventing D. with preventing
30. She added a little salt to the soup so it tasted _______ .
A. deliciously B. well C. good D. tastefully

V.Choose the best answer to complete the sentences.1. He bought me some flowers____________ week.A. this                          B. last               C. next             D. a2. It’s important ____________ tooth decay.A. avoid                       B. avoiding       C. to avoid                   D. avoided3. Choose the word whose underlined part is pronounced differently from the others in each group.A. iron                          B. fill                C. drill                          D....
Đọc tiếp

V.Choose the best answer to complete the sentences.

1. He bought me some flowers____________ week.

A. this                          B. last               C. next             D. a

2. It’s important ____________ tooth decay.

A. avoid                       B. avoiding       C. to avoid                   D. avoided

3. Choose the word whose underlined part is pronounced differently from the others in each group.

A. iron                          B. fill                C. drill                          D. comic

4. He felt much ____________ today than yesterday.

A. well                         B. good            C. better                       D. best

5. The little boy shouldn’t ____________ coffee.

A. drank                       B. drinks          C. drinked                    D. drink

6. He cycled to school very____________ .

A. careless                   B. careful          C. care D. carefully

7. We are going to see a ____________ movie with our parents.

A. concert                    B. detective                  C. white           D. comfortable

8. Choose the underlined words or phrases (A, B, C or D) that are incorrect in standard English

Talking (A) to (B) friends are (C) very interesting (D)

9. My mother made____________ dresses for me when I was a child.

A. much                       B. a lot             C. little D. lots of

10. Mai never eat grapes and ____________ Lan.

A. so does                    B. neither does C. either does   D. too does

3
2 tháng 4 2022

Tách ra 

2 tháng 4 2022

1. He bought me some flowers____________ week.

A. this                          B. last               C. next             D. a

2. It’s important ____________ tooth decay.

A. avoid                       B. avoiding       C. to avoid                   D. avoided

3. Choose the word whose underlined part is pronounced differently from the others in each group.

A. iron                          B. fill                C. drill                          D. comic

4. He felt much ____________ today than yesterday.

A. well                         B. good            C. better                       D. best

5. The little boy shouldn’t ____________ coffee.

A. drank                       B. drinks          C. drinked                    D. drink

6. He cycled to school very____________ .

A. careless                   B. careful          C. care D. carefully

7. We are going to see a ____________ movie with our parents.

A. concert                    B. detective                  C. white           D. comfortable

8. Choose the underlined words or phrases (A, B, C or D) that are incorrect in standard English

Talking (A) to (B) friends are (C) => is very interesting (D)

9. My mother made____________ dresses for me when I was a child.

A. much                       B. a lot             C. little D. lots of

10. Mai never eat grapes and ____________ Lan.

A. so does                    B. neither does C. either does   D. too does

11. Mai : “………………………….?” - Lan: “That’s a great idea.” A. Do you like playing sports B. Can you buy me some apples C. Why don’t we go out for dinner D. May I borrow your pen 12. Mr. Smith is………………old customer and ……………honest man. A. an/an B. the/an C. an/the D. the/the 13. No one can do it well and……………………. A. so can she B. neither can she C. she can’t, too D. she can, either 14. Fluoride toothpaste helps……………. tooth decay. A. with prevent B. for preventing C. preventing D....
Đọc tiếp

11. Mai : “………………………….?” - Lan: “That’s a great idea.”

A. Do you like playing sports B. Can you buy me some apples

C. Why don’t we go out for dinner D. May I borrow your pen

12. Mr. Smith is………………old customer and ……………honest man.

A. an/an B. the/an C. an/the D. the/the

13. No one can do it well and…………………….

A. so can she B. neither can she C. she can’t, too D. she can, either

14. Fluoride toothpaste helps……………. tooth decay.

A. with prevent B. for preventing C. preventing D. prevent

15. My funny story made the whole class………………………

A. smile B. laughing C. laugh D. crying

16. It’s cold today. You’d ………………….. wear a coat when you go out.

A. best B. like C. better D. good

17. It’s difficult to cross this street because there is too much ………..

A. crowd B. traffic C. people D. transport

18. Sorry I can’t come but thanks ………….

A. any ways B. any way C. anyway D. in anyway

19. Alice : “Would you like to come to my house for lunch?” - Tony: “………………”

A. Yes, I do B. I’d love to C. Yes, I like D. OK. I’d like

20. We may know the land very well , but we know very …………….. about the oceans.

A. few B. little C. much D. a little

21. I’m pleased that you and your family are …………...

A. good B. well C. best D. better

22. My younger sister seldom goes to class late and..................................

A. so do I. B. Neither don’t I. C. I don’t, either D. I don’t, too

23. Vietnamese students take part ……..diffirent activities at …… recess.

A.in/the. B. on/a C.in/ θ . D. at/ the

24. I have to write a ……..composition every two weeks.

A.two-thousand-word B.two-thousands-word

C.two-thousand-words D.two-thousands-words

25. It is fun to camp in the forest, but It is important to know how to ........the area clean before we leave.

A . give B . get C . keep D . take

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8 tháng 7 2017

11. Mai : “………………………….?” - Lan: “That’s a great idea.”

A. Do you like playing sports B. Can you buy me some apples

C. Why don’t we go out for dinner D. May I borrow your pen

12. Mr. Smith is………………old customer and ……………honest man.

A. an/an B. the/an C. an/the D. the/the

13. No one can do it well and…………………….

A. so can she B. neither can she C. she can’t, too D. she can, either

14. Fluoride toothpaste helps……………. tooth decay.

A. with prevent B. for preventing C. preventing D. prevent

15. My funny story made the whole class………………………

A. smile B. laughing C. laugh D. crying

16. It’s cold today. You’d ………………….. wear a coat when you go out.

A. best B. like C. better D. good

17. It’s difficult to cross this street because there is too much ………..

A. crowd B. traffic C. people D. transport

18. Sorry I can’t come but thanks ………….

A. any ways B. any way C. anyway D. in anyway

19. Alice : “Would you like to come to my house for lunch?” - Tony: “………………”

A. Yes, I do B. I’d love to C. Yes, I like D. OK. I’d like

20. We may know the land very well , but we know very …………….. about the oceans.

A. few B. little C. much D. a little

21. I’m pleased that you and your family are …………...

A. good B. well C. best D. better

22. My younger sister seldom goes to class late and..................................

A. so do I. B. Neither don’t I. C. I don’t, either D. I don’t, too

23. Vietnamese students take part ……..diffirent activities at …… recess.

A.in/the. B. on/a C.in/ θ . D. at/ the

24. I have to write a ……..composition every two weeks.

A.two-thousand-word B.two-thousands-word

C.two-thousand-words D.two-thousands-words

25. It is fun to camp in the forest, but It is important to know how to ........the area clean before we leave.

A . give B . get C . keep D . take