b) How old are they?

c) What did the nurse take?

d) How often do the students have a medical check-up

e) Why did you visit the dentist?

f) How do they feel now?

g) Who did Hoa follow?

h) What does he wear at work?

1. Mr and Mrs. Smit are travelling in Ha Noi now.

2. Van used to motorbike.

3. My father usually drives his car to work.

4. This part of the city didn't use to have traffic jam.

5. I used to go to school on foot when I was young.

Câu 5 chữ "food" bn viết sai rồi đó mà pải là "foot".

3.

1. What are the students learning in the schoolyard?

2. How does your mother usually ride her motorbike?

3. When are there often traffic jams in the city center?

Câu cuối mik ko chắc lắm đâu.

1. Linh' s family doesn't have a TV because they like to talk all evening.

2. Would you like to have dinner at my house tonight?

3. We are going to see a detective movie ưith our parents this afternoon.

4. Thirty years ago in VN very few people had TV sets.

5. My brother prefers watching TV to reading books.

1. received

2. went

3. buy

1. was

2.were

3.is

4. was

In France, you can only reverse your car on Sundays.

Good luck to you

Hợp chất nào dưới đây thuộc loại amino axit?

A. C₂H₅NH₂

B. H₂NCH₂COOH

C. CH₃COOC₂H₅

D. HCOONH₄

Trong dạ dày của động vật nhai lại, vi sinh vật cộng sinh tiết ra enzim tiêu hoá xenlulôzơ chủ yếu ở đâu?