№13
2 isn't
3 is working
4 works
5 is
6 is doing
7 does
8 are
9 are playing
10 play
11 do you know
12 am
№14
2 don't understand
3 don’t you ask
4 don't like
5 don't you like
6 shouts
7 why does he shout
8 don’t work
9 don’t do
10 shouts
№15
2 do you sometimes ( a) go
3 he never (b) helps
4 she rarely (a) plays
5 Does he often ( a) visit
6 they don’t often ( b) eat
7 we usually(a) eat
8 you must never (b) tell
9 she can always (b) answer