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【单选题】
After ________in the research for so many years，the scientist succeeded in finding the result at last．
After ________in the research for so many years，the scientist succeeded in finding the result at last.
A.
buried
B.
being buried
C.
having buried
D.
having been buried
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参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】The class _____ 80 students is hard to manage. [ ]
A.
consisting of
B.
consists of
C.
made up of
D.
made up
【单选题】—Mom, I did not pass the exam.—What a pity! Youit.
A.
can pass
B.
should have passed
C.
must pass
D.
must have passed
【单选题】(2013·高考北京卷)Hurry up！Mark and Carol________us.
A.
expect
B.
are expecting
C.
have expected
D.
will expect
【单选题】The boy was so tired that he fell asleep _______ his mother could take off his clothes．The boy was so tired that he fell asleep _______ his mother could take off his clothes.
A.
before
B.
after
C.
while
D.
when
【单选题】When I first met Bryan I didn’t like him, but I ________ my mind．When I first met Bryan I didn’t like him, but I ________ my mind.
A.
have changed
B.
change
C.
had changed
D.
would change
【单选题】— Which type of car do you like better?— _____. They are both expensive and high emission (高排量). [ ]
A.
None
B.
Either
C.
Neither
D.
Both
【单选题】Over the past decades, sea ice _____ in the Arctic as a result of global warming.
A.
had decreased
B.
more than
C.
attach
D.
apply
【单选题】The third generation network, _____ 3G, provides users with more advanced services. [ ]
A.
is known for
B.
is known as
C.
known for
D.
known as
【单选题】—The weather isn't good enough for an outing, is it?—Not in the least．We can't have ______ at this time of the year.—The weather isn't good enough for an outing, is it?—Not in the least. We can't have...
A.
a worse day
B.
a nicer day
C.
such bad a day
D.
so fine a day