一 、单选
1 What ______ from three to four yesterday afternoon？
A have you done B had you done C did you do D were you doing
2 - I call you yesterday evening， but there was no answer.
- Oh.， Im sorry I _____ dinner at my friends home.
A home B had C was having D have had
3 My mother _____ while my father _____TV.
A cooked；was watching B was cooking；was watching
C was cooked；watched D cooked；watched
4 When I got home， my son _____ the music.
A am listening to
B listened to
C was listening to
D was listening