题目内容
Sorry, I've kept you ________ for a long time.
[ ]
A.wait
B.to wait
C.waiting
D.wanted
答案:C
解析:
解析:
C(keep后接动词-ing形式。) |
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题目内容
Sorry, I've kept you ________ for a long time.
[ ]
C(keep后接动词-ing形式。) |