题目内容


You must have waited here for a long time ,___________you?
A．mustn’tB．didn’tC．haven’tD．hadn’t
C
考察反意疑问句， must表猜测时其反意疑问句要和must后的动词保持一致。“你肯定等了很长时间，是吗？”，由于没有过去时间状语所以答案C。
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