Đáp án:

Ex I:

 Phủ định: 

1. You can't play this game.

2. My friends hate bananas very much.

3. He isn't waiting for Lan.

4. Huong doesn't need two kilos of meat.

 Nghi vấn:
1. Can you play this game?

2. Do my friends hate bananas very much?
3. Is he waiting for Lan?
4 Does Huong need two kilos of meat?

Ex II:
1. They always aren't free on Sundays.

2. He sometimes goes home in the afternoon.

3. Is it usually cold in the winter?
4. What do you often do at weekends?

Ex III:
1. any (câu phủ định)

2. some (any câu phủ định, ice-cream có "i" là nguyên âm nên không dùng "a")

3. a few (a little + UC Noun, eggs số nhiều nên loại "an")

4. for (for + sth/sb)

Ex IV

1. I often have Math on Monday.

2. How much milk does your mother want?

3. We don't need any vegetables.

4. We are going to visit Nha Trang this Sunday.