(Kết hợp mỗi cặp câu sau để tạo thành câu điều kiện loại 1) 
1.Students are more aware of protecting the environment. Teachers teach environmental issues at school.
If …………………………………………………………………………………………………
2.Light pollution happens. Animals change their behaviour patterns.
If ………………………………………………………………………………………………..
3.The levels of radioactive polluion decrease.We switch from nuclear power to renewable energy sources.
If …………………………………………………………………………………………………..
4.The water temperature increases.Some aquatic creatures are unable to reproduces.
If…………………………………………………………………………………….....................
5.People get more diseases.The water is contaminated.
If …………………………………………………………………………………………………

Use simple past or present perfect :

1 ..............Henlen ever ...............................[try] sushi ?

2................you................................[go] to the wedding last night ?

3 I .............. never .............................[be] to paris  ?

4 this year I ....................................[traver] to athens 3 times so far  ?

5 paul and judith  ......................... [be] married since 1998 ?

6 ................. you ....................[finish] your homework yet ?

7 Last night  aunt betty ..............[come] by . she ............[tell] us that this  summer they are going to Hawaii?

8 when ..............you..................[come] to greece ?

9 I .................[come] in 2007  ?

10 ............. you .................[watch] the film E.T. yesterday ?

11 I .................[meet] him in 2009 , so I ................[know] him for 3 years ?

12 what ....................[happen] to lucy last night ?

13 ............... you .................. [read] "Harry Poter " when you were on holidays ?

giúp với anh em ơi mình đang cần ghấp giúp với ạ  ai nhanh mình k cho 

Câu 1 : Đơn vị tính công suất :

 A. Mét khối (m3)                   B. Jun (J)                       C. Oát (W)                                 D. Mét (m)

Câu 2 : Trên một chiếc quạt điện có ghi : công suất là 55 W thì điều ghi trên máy có nghĩa là :

A. Quạt máy có thể thực hiện công 55 J trong 1 giờ.          B. Quạt máy có thể thực hiện công 55 kJ trong 1 giờ.

C. Quạt máy có thể thực hiện công 55 J trong 1 giây.        D. Quạt máy có thể thực hiện công 55 kJ trong 1 giây.

Câu 3 : Mỗi ròng rọc động, khi sử dụng ta bị thiệt mấy lần về đường đi :

A. 5 lần.     B. 4 lần. C. 3 lần.          D. 2 lần.

ĐM CÁI NÀY LÀ VẬT LÍ NHÁ

Put in the correct prepositions in the blank.

It is now almost certain that global warming has been directly caused (1)................man's use of fossil fuels.This has led (2)........an international debate about what we should do to reducethe negative effects (3)........our actions and how we can make the planet safe for our children to live in. One consequence (4)...........this debate has been to improve the level of "green" education in schools and this should result (5)......... greater awareness of thí difficult issue in the long term. However, in the short term there still remains much to be done. The reason (6)....this is that we need to address causes (7).....................the immediate problem. 

1.put the word in the brackets in to right from to complete sentences

1) I like cooking in my freetime. It makes me feel(relax)

2) My sister doesn"t  like search  in the Internet.she say it(bore)

3) Skateboarding in hẻr hobby . it is also one of the most(populasity)sport of the teeragers in the town

4) my close frieng gave me a(wonder) present on my birthday.i like it so much

5) My brother works as a volunteer for an animal  protection (organice) he relly love his JOB 

Nhờ bn nào làm hộ mik cái mik cảm ơn ạ

Viết lại câu:

1. Millions of newspapers and paper bags are throwing away everyday.

2. For every ton of recycled newsprint, nearly ten trees can save.

3. Books published by Kim Dong publisher are selling out so quickly.

4. The children attracted by the circus show.

5. We are going to a meeting holding by the Y.Y club.

6. Waste paper and old clothes will collect for our mini-project.

find the word which has different sound in the part underlined.

1. A.ago       B. boring       C. explore      D.story

2. A.hold       B.icon           C. open          D. cold

3. A. mention     B. question    C action    D. education

4. A.who       B. when         C. where        D. what

IV. Rewrite the sentences using the given words below 

1.I would like you to help me put the chair away.

-Do you mind………………………………………………………

2.Vinh keeps forgetting his homework. 

Vinh is …………………………………………………………….

3.Keeping the inviroment clean is very important.-It’s……………………………………………………………

4.Old car tires are recycled to make shoes and sandals.-People……………………………………………………

5.It’s three years since I last spoke to her. 

-I haven’t……………………………………………………

6.Tam doesn’t type as fast as she used to. 

-Tam used ………………………………………………………….

7.How long is it since you used the car? 

When ……………………………………………………………..

8.We started living here 15 years ago. 

 -We have…………………………………………………………...

9.Let’s meet inside the center ,at the cafe corner.-How…………………………………………………………

10.I’ve never eaten this kind of cake. 

It’s ………………………………………………………………..

IV. Rewrite the sentences using the given words below 

1.I would like you to help me put the chair away.

-Do you mind………………………………………………………

2.Vinh keeps forgetting his homework. 

Vinh is …………………………………………………………….

3.Keeping the inviroment clean is very important.-It’s……………………………………………………………

4.Old car tires are recycled to make shoes and sandals.-People……………………………………………………

5.It’s three years since I last spoke to her. 

-I haven’t……………………………………………………

6.Tam doesn’t type as fast as she used to. 

-Tam used ………………………………………………………….

7.How long is it since you used the car? 

When ……………………………………………………………..

8.We started living here 15 years ago. 

 -We have…………………………………………………………...

9.Let’s meet inside the center ,at the cafe corner.-How…………………………………………………………

10.I’ve never eaten this kind of cake. 

It’s ………………………………………………………………..