问题

Did you see them ____ basketball this morning?
A:playing
B:were playing
C:to play
D:are playing
B:were playing
C:to play
D:are playing
正确答案是:
同类题型
Beijing is a city with many places of interest and _____ tourists come here every year.
Robert, I failed again!—Don’t worry, you’ll get chosen for the team. ___________.
Nancy, you are going to buy a flat here, aren’t you ? — Yes, but I can’t ____ an expensive one .
________five minutes________ before the last train left, we arrived at the station.