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I had to wait for half an hour before he______see me.
I had to wait for half an hour before he______see me.
admin
2013-10-17
41
问题
I had to wait for half an hour before he______see me.
选项
A、can
B、may
C、might
D、could
答案
D
解析
have to(must)…before…can…“必须……才”,是一个句型。此句是过去时,所以用could。might“也许”,口气太弱,与句义不符。
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