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
— Betty, what time do you have Chinese on Monday? — We have Chinese __________ eight o’clock.
#46824
A
at
B
on
C
for
D
with
There is a bridge __the river and __ the bridge many people are walking.
#48084
A
over; over
B
on; on
C
on; over
D
over; on