问题
I’m sorry to have kept you waiting.—Oh, not at all. I ________here only a few minutes.
A:have been
B:had been
C:was
D:will be;
B:had been
C:was
D:will be;
正确答案是：
同类题型
The students are full of energy．They are thirsty ________knowledge．
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Why not try that — Do you think I can beat Mike
The police ____the murderer everywhere whenhe suddenly appeared in a theatre.