1 Why are you smiling? -I am smiling because I am happy. I always smile when I am happy.
2 plays, is playing.
3 sets
4 don't understand
5 is ringing
6 doesn't eat
7 is climbing
8 smokes
9 is making, makes
10 is sitting
11 works
12 don't hear
13 is having
14 hates
15 are looking for
16 remembers
17 am trying
18 is coming
19 stay
20 What are you doing at the moment?