_____ at the door before you come into the room.
#94211
A
Hit
B
Knock
C
Touch
D
Strike
推荐题目
 The young man spent as much time as he ______ over his lessons.
#94776
A
went
B
can go
C
could going
D
could to go
It’s good manners _______ .
#93789
A
for Chinese people to open the present as soon as he/she receives it.
B
for both Chinese and British people to open the presents the moment they receive them.
C
for both American and British people to open the presents when they get back home.
D
for both American and British people to open the presents immediately they receive them.
The little girl _______ go to the cinema rather than _______ at home alone that night. 
#93141
A
prefered; stay
B
prefers to; to stay
C
prefered to; stay
D
prefers to; stay