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【单选题】
More patients ___________ inhospital this year than last year.A.
treated
B.
have treated
C.
had been treated
D.
have been treated
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举一反三
【单选题】________ the difficult things happened when I can't adjust myself? [ ]
A.
What about
B.
What with
C.
What if
D.
What for
【单选题】What does the sentence 'The air helps purify the water' illustrate?
A.
The ecological balance.
B.
The water cycle.
C.
The earth's limited resources.
D.
The life cycle.
【单选题】I didn't know what ____ to her last night. [ ]
A.
was happened
B.
happening
C.
happened
D.
was happen
【单选题】I don’t know _____.
A.
what happened to him
B.
what did he happen
C.
what he happened
D.
what was the matter
【单选题】-----What _____? -----I______my key and can't open the door.
A.
happened, lost
B.
has happened, lost
C.
happens, have lost
D.
has happened, have lost
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