问题
选择题
— "How long do you suppose it is _______ he left for Japan?"
— "No more than half a month."[ ]
A.when
B. before
C. after
D. since
答案
答案：D
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— "How long do you suppose it is _______ he left for Japan?"
— "No more than half a month."[ ]
A.when
B. before
C. after
D. since
答案：D