问题

What would you do if _________ eighty-year-old manfell down in front of you —-I don’t know.Maybe I will help him.
A:a
B:an
C:the
D:/
B:an
C:the
D:/
正确答案是:
同类题型
Peter was so excited ______ he received an invitation from his friend to visit Chongqing.[ ]
Have you heard the amazing news —–But it _______ be true. Anyonewith common sense won’tbelieve it.
r you go or not, _______ is quite allright with me.
The fact that she never apologized ____alot about what kind of person she is.