问题

While the boy ______ down the street, the UFO_____ .
A:was walking;was landing
B:walked;landed
C:was walking;landed
D:walked; waslanding
B:walked;landed
C:was walking;landed
D:walked; waslanding
正确答案是:
同类题型
It wasn’t a few years _________we met each other
Is Tina a shy girl — Yes, she is always afraid of ______ in front of her classmates.
Don’t keep water running when you wash hands. — __________.
Didn’t you hear the rain last night — . I didn’t wake up until this morning.
Could you tell me _________—–He is very fat. And he _________ playing football.