Bài 1: 

1. C. much => many ("friends" là danh từ đếm được)

2. B. rides => is riding ("at the moment" là dấu hiệu nhận biết thì hiện tại tiếp diễn)

3. C. in => by (by + phương tiện: đi bằng phương tiện)

4. C. year => years

5. B. England => English (English examination : bài kiểm tra tiếng Anh)

Bài 2:

1. What is the price of the blue schoolbag?

2. Mr Binh is flying to Paris.

3. Are there five rooms in Mai's house ?

4. My father travels to work by motorbike everyday.

5. She goes to work at a quarter past seven.

6. Your room is bigger than my room.

7. What is the price of a box of chocolate?

8. There are twelve packets of tea in this box.

9. This house is the oldest on the street.

10. Mr and Mrs Hung are Kien's parents.

`1.`

1. Much → many 

2. Rides → is riding

3. In → by

4. Year → Years 

5. England → English 

`2.`

1. What is the price of the blue schoolbag?

2. Mr Binh is flying to Paris.

3. Are there five rooms in Mai's house?

4. My father travels to work by his motorbike everyday.

5. She goes to work at a quarter past seven.

6. Your room is bigger than my room.

7. What is the price of a box of chocolate?

8. There are twelve packets of tea n this box. 

9. This house is the oldest on the street.

10. Mr and Mrs Hung are Kien's parents.