Răspuns:
a)
1 is shuting
2 do the planes fly
3 isn't learning
4 are doing
5 buy
6 does he listen
7 runs
8 are you laughing
9 write
10 isn't snowing
11 will meet
12 aren't talking
13 is he watching
14 am washing
15 is it raining
16 do you go
17 aren't eating
18 is she studying
19 cooks
20 are they leaving
b)
1 tastes
2 do you see
3 don't hear
4 has
5 remember
6 doesn't love
7 belongs this umbrella
8 don't think
9 matter
10 do you hate
c)
1 do you understand
2 smells
3 are they dancing
4 isn't reading
5 doesn't know
6 get
7 gives
8 doesn't want
9 is the baby sleeping
10 don't believe
11 isn't working