l forget ____ the door . l thought it was open.A.lockingB.to lock_英语解答

l forget ____ the door . l thought it was open.
A.locking
B.to lock
写出理由

人气：419 ℃　时间：2020-04-07 11:55:16

解答

B.
forget doing sth 是忘记做过某事. (已做)
forget to do 忘记要去做某事. (未做)
题目中明显提示们还开着,所以肯定是未做,于是用不定式to do形式.