问题
选择题
He remembers ______ his keys in the bag, but he can't find them now. [ ]
A. putting
B. puts
C. to put
D. is putting
答案
答案：A
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He remembers ______ his keys in the bag, but he can't find them now. [ ]
A. putting
B. puts
C. to put
D. is putting
答案：A