问题

I remembered ________ the door before I left the office, but forgot to turn off the lights.[ ]
A: locking
B: to lock
C: having locked
D: to have locked
B: to lock
C: having locked
D: to have locked
正确答案是:
同类题型
I don’t know if his uncle ________. — I think he ________ if it doesn’t rain .
Come on, baby. We have already done _________ of the work.
He was wild with joy when he ______ a solution to the difficult problem
I hear your journey was not very pleasant—But for the sudden rain we _______ a wonderful time