Bài 4

1 used to live

2 am used to living

3 used to work

4 am used to working

5 used to have

Bài 3

1 He used to study hard

2 Janet used to go to bed early

3 He didn't use to smoke

4 Mike didn't use to go out every morning

5 Bill used to run three miles every evening

1 A

2 C

3 A

4 D

5 C

26 C

27 B

28 B

29 B

30 D

21 C

22 C

23 A

24 D

25 A

16 C

17 A

18 C

19 D

20 C

11 B

12 A

13 B

14 C

15 B

6 A

7 A

8 C

9 D

10 B

1 D

2 B

3 B

4 D

5 B

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