How come Susan hasn't arrived here yet?
问题描述：
How come Susan hasn't arrived here yet?
She had.Her key at home and went back for it just now
A.Missed.B.lost.C.forgotten.D.left
为什么选d,不能是c
答
forget to do 一般指忘记做某事,或者forget about sth.此外从句意讲forget means fail to remember or recall sth.不是忘记了钥匙长什么样,而是忘记了把钥匙放在家里,更强调落下这个动作,所以最好选D