问题
选择题
I would have come earlier, but I________that you were waiting for me.[ ]
A. hadn't known
B. didn't know
C. would have known
D. haven't known
答案
答案：B
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I would have come earlier, but I________that you were waiting for me.[ ]
A. hadn't known
B. didn't know
C. would have known
D. haven't known
答案：B