1 has
2 what are Linda and Charles doing
3 learn
4 how many times a week does she do...?
5 why haven’t you cooked..?
6 when does she usually travel?
7 is playing
8 began
9 have just listened
10 does
11 whose friend was...?
12 what does Paul do? is
13 got
14 have just told
15 reads
16 have never been
17 lasts
18 reads-do