问题
选择题
I remembered________ the door before I left the office but forgot to turn off the lights.
A．locking
B．having locked
C．to have locked
D．to lock
答案
答案：D
题目分析：句意为：离开 办公室前我记着要去锁门，却忘了关灯。 remember/forget to do sth.记得 /忘记去做某事； remember/forget doing sth.记得 /忘记曾经做过某事。选D。