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