You shouldn’t leave the door _____when you go out.
#51136
A
close
B
closing
C
open
D
opening
推荐题目
John does important research _______ the best ways to help the old.
#48571
A
finds
B
finds
C
found
D
to find out
I couldn’t wait _____ the box as soon as I received the gift.
#49148
A
to open
B
open
C
opening
D
for opening
—We can use QQ to communicate with each other online. —Good. Will you please show me ?
#50616
A
which to use
B
how to use it
C
what to use
D
where to use it