Question

i remembered（）the door before i

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选什么，麻烦解释清楚点，谢谢

Answer 1

如果选A的话，C也对，remember doing和remember to do,在意思上没有差别，这两个选项都是记得已经做过某事。没有remember to have done这一个搭配，D是错误选项，根据句意，在离开办公室之前，我记得锁门，但忘记了关灯。
综上所述答案应选B。