Forgot + infinitive is used when someone fails to do something.
不定式：忘记做某事是指由于记忆力衰退而未能做那件事。例如，忘记吃药是指你没有吃药。

Forgot + gerund is used when someone forgets having already done something.
动名词：你的记忆出了问题，但不一定没有完成任务。例如："我忘记见过他"。你并没有没有完成与这个人见面的任务，你只是不记得曾经见过面。

Tom is a careless person. He forgot (A) the door again when he went out yesterday.
A. to lock
B. locking
C. to have locked
D. having locked

标签: none

评论已关闭