I. Choose the underlined part among A,B,C or D that needs correcting
32 Your \(\)gradfather could speak five languages, could he?
33 she spoke in a very low voice, but I can understand what she said
34 I used to be to stand on my head but I can't br able to do it now
35 The trip was cancelled last week. John couldn't go away because he was ill
II. Complete the questions by adding the tag questions
1. Paul doesn't like football,....
2. You have got a sister,...
3. You haven't done you homework,...
4. You sat next to Helen,....
5 Your name is John,....
6. I didn't leave my wallet on the desk,...
III. Complete the sentences with could was/were or able to n't
1. Jack was an excellent tennis player. He.... beat anybody
2. The fire spread quickly but everyone... escape
3. They didn't have any tomatoes in the in the first shop I went to, but I..... get some in the next shop
4. He can't play tennis very well now but he.......play quite well when he was younger
5. The boy fell into the river but fortunately we........ rescue him
6. She wasn't at home when I phoned but I ...... contact her at her office
tìm và sửa lỗi sai
15. The manager about which Mary told was wealthy.
16. I don't know the reason what he wanted to leave his home country.
17. I have two brothers, both of which are studying in England.
18. Auguste Mouchout was the first man designed a motor running on solar energy