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PAGES 72-73

EX 13

1 haven't seen

2 for

3 have you been for

4 have been

5 for

6 did you do

7 worked

8 did you arrive

9 arrived

10 have been

11 since

12 haven't met

EX 14

1 are you going

2 will stay

3 are you going

4 am going

5 will go

6 are going to drive

7 are you staying

8 will couchsurf

9 will have 

10 am going to find

EX 15

1 used to work

2 travel

3 went

4 have met

5 used to work

6 was wearing

7 haven't seen

8 have you been

9 was

10 saw

11 were looking

12 took

13 have you been working

14 have been working

15 have you visited

16 have been

17 have just come 

18 did you go

19 went

20 was

21 visited

22 are you going

23 feel

24 am leaving

25 am looking

26 is

27 reached

28 felt

29 went

30 wrote

31 will be

 

EX 16

1 B

2 A

3 D

4 B

5 B

6 C

7 C

8 D

9 B

10 C

11 B

12 D

13 A

14 A

15 C

16 D

17 D

18 B

19 B

20 C