I.1a sing
2a hour
3a thank
4c store
II.1c used to live
2a should
3b chores
4b fast
5c to
6b do
7c fell
8a let's
III.1 playing
2 visit
3 go
4 went
IV.1 true
2 false
3 true
4 false
V.1 he told us to shut the door
2 the doctor told me to eat more fruits and vegetables
3 she asked me if I could speak more slowly
4 he asked me if I could phone him at 5
5 the weather wasn't warm enough to go swimming
6 The ladder was too short to reach the window