题目内容
—The light in the office is still on.—Oh. I forget ________.
A. turning it off
B. turn it off
C. to turn it off
D. having turned it off
答案:C
解析:
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解析:
| forget doing sth.意为“忘记做过某事”,而forget to do sth.则是“忘记做某事”之意。
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