I rememberd __ 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
答案是选B的,麻烦解释下,谢谢
但是我觉得“我记得我离开办公室前关了门,但是我忘记去关灯了。”这个意思也还可以吧
追答按照你的 理解 before I left the office修饰的是 locking
如果那样的话 应该用宾语从句 I rememberd that i had locked the door before I left the office.