一道高中英语题目,请帮忙解答,谢谢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
问题描述：
一道高中英语题目,请帮忙解答,谢谢
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
答