a) \(2\widehat{A}=3\widehat{B}=6\widehat{C}\Rightarrow\frac{\widehat{A}}{3}=\frac{\widehat{B}}{2}=\frac{\widehat{C}}{1}=\frac{\widehat{A}+\widehat{B}+\widehat{C}}{3+2+1}=\frac{180}{6}=30\)

\(\Rightarrow\widehat{A}=90;\widehat{B}=60;\widehat{C}=30\)

b)  Xin lỗi mình chưa nghĩ ra

Merry Christmas !

  >.< 

Noel mong anh ấy sẽ đi chơi vs m

Các bn chuk phúc cho bọn m nha !

Làm xong đăng lên cho bạn chép vô à. Lười vừa thôi! Chúc giáng sinh vui vẻ!

1.Our school year starts on September 5th  
When does your school year start?

2.Summer vacation lasts for three months.    
How long does your summer vacation last ?

3.The longest vacation is summer vacation .
What is the longest vacation ?

4.I usually visit my grandparents during my vacation 
Who do you usually visit during your vacation ?

5.My mother works eight hours a day.
How many hours a day does your mother work ?

6.Mr Robinson is an English teacher. 
What is Mr. Robinson ?

1 . When does your school year start ?

2 . How long does your summer vacation last ?

3 . What is the longest vacation ?

4 . Who do you usually visit during your vacation ?

5 . How many hours a day does your mother work ?

6 . What is Mr . Robinson ?

1. One of my brothers have two eggs some break for breakfast   -> has 

2. Our teacher give us much homeworks today .-> many

3. My family is traveling to Ho Chi Minh City by bus

4. Most people doesn't go to work on Sunday -> don't

5. Our classroom is on the two floor -> second

6. His sister often goes to school with an orange small bag ->an small orange bag

7. Mai always helps her mother in the house work -> with

8. Would you an apples or any orange juice ? -> some

9. A lot of my friends play soccer , but not much of them play tennis -> many 

10. Vy is a very good tennis play . She plays for the school team -> player

Each sentence has a mistake . Find and correct it

1. One of my brothers have=>has two eggs some break for breakfast

2. Our teacher give us much homeworks=>homeworks today .

3. My family is traveling=>travels to Ho Chi Minh City by bus

4. Most people doesn't=>don't go to work on Sunday

5. Our classroom is on the two=>second floor

6. His sister often goes to school with an orange small =>a small orange bag

7. Mai always helps her mother in=>with the house work 

8. Would you an apples or any=>some orange juice ?

9. A lot of my friends play soccer , but not much=>many of them play tennis

10. Vy is a very good tennis play=>player. She plays for the school team 

xin chào bạn bao nhiêu tuổi

Dịch ra : Xin chào,bạn bao nhiêu tuổi ?

Có đúng không ?

mình có học tiếng Nhật

1. My mother often (go)..goes...to the market every morning but she ( not go)..doesn't go...there this morning. 

2. When (you/ have).....do you have........the last medical check-up?

3. Why ( you/ not take) ..did you didn't take................part in the picnic last Sunday?

4. Where ( your teacher/ be).....is your teacher......?

5. I (pick)..pick..you up at your hotel in half an hour.

6. We can't go out now because it (rain) ..rains.. .

P/s: Hai câu bên dưới câu số 4 mình không hiểu lắm,ý bạn là gì?

Câu 4 chia câu trả lời bằng 3 cách

I MISS YOU = TÔI NHỚ BẠN

Ừ làm bạn nhau nhé!

I MISS YOU : TÔI NHỚ BẠN 

1. Đồi là núi già

2. Quốc kì = Énsign

3. Nga

4. 20 răng

5. Đấu vật

6 Than hoạt tính

7. 135 độ

8. NH3

9. Điểm uốn

10. Trọng lực

Mình không biết có đúng không. Nếu sai thì thông cảm cho mình, mình học dốt

1/ When have you learnt english ?

2/ when have you studied english ?

3/ She has studied this foreign language for nearly 3 years .

1how long is it since you have learnt english

=> when ...............did you learn E?..................................

2 make a question 

i have studied english for 3 years

=>How long have you studied E?

3 make sentence 

she has studied this foreign language for nearly 3 years