问题
How long do you think it will be _______ the USA recovers from the losses of the financial crisis?— Perhaps four or five years.[ ]
A: when
B: since
C: that
D: before
B: since
C: that
D: before
正确答案是：
同类题型
___ by the beauty of nature, the girl fromLondon decided to spend another two days on the farm.
With so much work _______, we had to sit up through the night.[ ]
Not until Tom got off the bus _______ his mobile phone missing.
He doesn’t have _____ breakfast in the morning, but he usually has _____ big lunch.