My granfpa always forgets __the door but he always says that he remembers__it.
A to lock ;to lock
B to lock ;locking
C locking ;locking
D locking ;to lock
人气：310 ℃ 时间：2020-03-28 13:27:03
解答
B
forget to do sth.忘记要做某事（没做）
forget doing sth. 忘记做过某事（已做）
remember to do sth 记得要做某事（没做）
remember doing sth. 记得做过某事（已做）
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