31 E Why don't you come along?
32 D I have a dance lesson then.
33 B Are you busy on Saturday afternoon?
34 C Sure, why not?
35 A At 5 o'clock.
1 visited,saw,had changed
2 were,was cooking
3 isn't interested,has already read
4 called,had stolen
5 was looking.
Where have you been?
6 has known
7 has been working
8 What has happened?
9 has gone
10. Has she improved her English yet?
11 has been living
12 found,had described
13 saw,was waiting
14 When did the Second World War start?
started.
15 was having,called
16 spent
17 was sitting
18 was studying
19 have just discussed
20 were cleaning, started
21 didn't visit