1, played ( yeasterday)
2, was having ( when QKD , QKTD)
3, take ( should + v-inf)
4, get
5, are learning
6, went ( last)
7, had your son had to
8, came
9, was watching
10, was walking / stopped/ had
11, was lying/ heard
12, droped/ was eating
13, was dancing/ left
14, had to/ will not have to
15, doing ( mind)
16, meeting ( enjoy)
17, have n't seen
18, met/ was not going/ was going
