---- What do you think of haze(雾霾)？ ---- It ____ us we all must try to do something to stop the air pollution.
#53513
A
leads
B
introduces
C
cheats
D
reminds
推荐题目
—Someone is knocking at the door. Who ______ it be? —It ______ be Tom. He is still in the school.
#52340
A
may; can’t
B
can; mustn’t
C
might; couldn’t
D
could; may not
The mother with her son ________ at home ________ that snowy night.
#61077
A
were; at
B
was; at
C
were; on
D
was; on
I can hardly hear what it is saying on the radio. Would you please ________?
#58714
A
turn it down
B
turn it up
C
turn it on
D
turn it off