1/
1 aren'you
2 didn't
3 aren'they
4 won't she
5 aren't they
6 isn't it
7 shouldn't they
8 can you
9 won't you
10 haven't we
11 do you
12 isn't is
13 aren't you
14 didn't we
15 will you
16 do we
17 have you
18 did they
19 can't it
20 don't you
2/
1 I didn't ues to
2I used to
3I used to
4I didn't used to
5 I used to
3/
1 I used to stay up late to watch football matches last year ,but now I don't
2 there used to be some trees in the field,but now there aren't any
3 Lidan used to live with her parents
4 He used to be a poor man,but he becomes a rich businessman
5 they didn't use to go to the cinema every sundat last year
6 In the past my hair used to shorter than it is now
7I used to be have time to collect stamps as when I was in primary school
8 Did use to go to beach when you lived in nha trang
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