exercise 21, halaman 96-98
1.Understood
2.would haven't been
3.will give
4.would have told
5.would have been
6.had
7.would stop
8.needed
9.could have found
10.enjoyed
11.paint
12.were
13.will write
14.permitted
15.spent
16.will accept
17.buys
18.had decided
19.would have writen
20.will leak
21.had studied
22.hears
23.see.
24.gets
25.turn
26.were
27.would have called
28.would have talked
29.explained
30.spoke
