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
There is a big tree ______ the house.
#50720
A
in the front of
B
at the front of
C
in front
D
in front of
---- Hi, Jane. What time do you get up _____ weekdays?---- I usually get up _____ about six o’clock.
#48260
A
in; at
B
on; at
C
at; at
D
on; on
His flat is ________the _______floor in a building on a busy street．
#49549
A
in, nine
B
in, ninth
C
on, nine
D
on, ninth