ex5:
1 arrived
2 walk
3 discovered
4 bought
5 got
6 were
7 explaining
8 Did...met...
9 getting
10 to play
11 did
12 learn
13 has finished
14 was sleeping
15 has seen
16 were practicing
17 was washing
20 have seen
21 will call
22 are watching
23 is going to live
24 are... going to do...
25 Is...playing
27 circles
28 going to listen
29 is sleeping
30 are staying
31 stay
32 goes
33 take
34 do
35 flow