单项选择题

__________at the door before you come into the room.

A．Hit
B．Knock
C．Touch
D．Strike
<上一题 目录 下一题>
热门 试题

单项选择题
She likes hearing her own voice. She never stops__________.
A．talking
B．telling
C．to talk
D．to tell
单项选择题
He is sincere and easy to__________.
A．get down to
B．get at
C．get along with
D．get over
相关试题