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