问题

I couldn’t walk very fast because a lot of people were ___________.
A:has been
B:have been
C:was
D:were;
B:have been
C:was
D:were;
正确答案是:
同类题型
Flying into the airport at Lima, we _________ avoided a head-on crash with another plane.
______ have you been playing ping-pong —— For five years.
Do you know the tower _____ in the heart of thecity— You mean the one _____ from the Ming Dynasty
I will have the final exam(考试) next week.-I _____ you ________ good luck.