We’d better not keep the lights______ when we have PE classes outside.
#48235
A
off
B
on
C
open
D
closed
推荐题目
Please cut __ the banana __ small pieces.
#49846
A
up; to
B
up; into
C
off to
D
off into
We have to go to that place ______bus. 
#47602
A
by
B
in
C
on
D
takes