You shouldn’t leave the door _____when you go out.
#51136
A
close
B
closing
C
open
D
opening
推荐题目
Dr. Ma used to            two or three persons in the hospital.
#49403
A
operate on
B
operating on
C
operate for
D
operating for
How about ______to movie?
#49156
A
going
B
to go
C
go
D
goes
Mary likes ___________, but I ________listening to pop music.
#50309
A
dance; enjoy
B
dancing; enjoy
C
dance; enjoys
D
dancing; enjoys
I used to spend a lot of time ________ computer games. 
#48949
A
to play
B
play
C
playing
D
played