问题

I ______ Mr White at that time, otherwise I wouldn’t have asked you for some information about him[ ]

A: hadn't known
B: didn't know
C: don't know
D: haven't known

正确答案是：

同类题型

A liar cannot make himself _____.

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and gentlemen, please remain __________ until the plane has come to a completestop.

He hurt her _________ badly _______ she had to see a doctor