—May I remind you that Mr. White is waiting outside, Mrs. Green? —Oh, I all about it. A.

—May I remind you that Mr. White is waiting outside, Mrs. Green?
—Oh, I all about it.
A. forget
B. had forgotten
C. forgot
D. was forgetting

A. forgetB. had forgotten(答案→)C. forgotD. was forgetting解析：考查时态。句意：我可以提醒你吗怀特先生在外面等着呢，格林先生？噢，我全忘了。根据语境忘记的动作在过去。所以用一般过去式。选C。

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