--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
网友回答
A. forget
B. had forgotten
(答案→)C. forgot
D. was forgetting
解析：考查时态。句意：我可以提醒您怀特先生正在外面等着吗？格林先生。——哦。我忘记了这件事。结合语境可知下文描写的是刚才的动作，故用过去时态，选C。