ex 11
2) is washing
3) works, think
4) does he usually have, never eats, has
5) does Tom play, doesn't like
6) Do you want, don't know, goes
ex 13
1) in
2) on
3) at, in
4) in
5) im
6) on
ex 14
1) who
2) what
3) when
4) how old
5) what
6) where
ex 15
1) a
2) a
3) a
4) a
5) b
6) a