问题
选择题
— How long do you suppose it is _____ he arrived here?
— No more than half a week.[ ]
A. since
B. before
C. after
D. when
答案
答案：A
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— How long do you suppose it is _____ he arrived here?
— No more than half a week.[ ]
A. since
B. before
C. after
D. when
答案：A