13 This is the first time I have visited London

14 This is the first time I have tasted this fish

15 When did you last write to your brother?

16 How long have you been working

9 The last time we saw her was when we left school

10 I haven't seen him since I was a student

11 It's 3 months since she last went to the hairdresser's

12 We've run out of rice

5 Hoa has not phoned me for 2 weeks

6 We have been close friends for a long time

7 I've never used a better computer than this one

8 It's ages since he last chatted with his classmates through the internet

1 Tom has been learning English since 1990

2 I haven't met him since last summer

3 I haven't had my eyes tested since 1990

4 John has played the piano for 10 years

10 A

11 A

12 C

13 C

14 A

15 A

16 C

IV

1 D

2 B

3 C

4 A

5 B

6 C

7 A

8 C

7 was raining

8 had thought

9 were

10 to sing

11 had

12 went - did not have

III

1 visited

2 was making

3 was crosing

4 stepped

5 were dancing - broke - stole

6 stood - greeted

III

1 visited

2 was making

3 was crosing

4 stepped

5 were dancing - broke - stole

16 D

17 A

18 A

19 C

20 C