1. David...

1. David ... until 8 o’clock last night! a were working b works c was working 2. I was having dinner when he ...home.

 

1 с
2 с
3 a
4 b
5 b
6 c
7 b
8 b
9 a
10 b
11 b
12 b
13 c
14 b
15 a
16 b
17 a
18 b
19 c
20 a
21 c
22 b
23 a
24 c
25 c
26 c
27 c
28 b
29 b
30 a
31 c
32 b
33 a
34 a
35 b
36 c
37 c
38 b
39 a
40 a
41 c
42 b
43 c
44 a
45 b
46 c
47 b
48 c
49 a
50 a
51 a
52 b
53 c
54 c
55 a
56 c
57 c
58 c
59 a
60 c