问题

I ran 10 miles last weekend. Can you believe that? – Wow, that ______ easy!
A:mustn' t be
B:mustn't have been
C:can't have been
D:couldn’t be
B:mustn't have been
C:can't have been
D:couldn’t be
正确答案是:
同类题型
26. The new movie promises to be one of the biggest money-makers ______________.
New York ____________ second in the production of apples,producing 850 000 000 pounds this year.[ ]
There were no tickets _____ for Friday’s performance.
You can hardly imagine the trouble we had _______ in touch with him again?[ ]