1 had
2 does, meets
3 did his brother come, didn't come, was busy
4 get, slept
5 do
6 was, became
7 didn't understand
8 do you go to the, go
9 sleeps, slept
10 walk, took
11 did she buy, she didn't buy
12 did they sell, don't know
13 is, ate
14 left
15 are
