问题
选择题
— 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
答案
答案：D
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— 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
答案：D