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【单选题】
_____ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
[ ]
A.
Examining
B.
Examined
C.
Being examined
D.
Having been examined
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参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】It is known to all of us that lions ________ meat-eating animals.
A.
belonged to
B.
are belonging to
C.
are belonged to
D.
belong to
【单选题】No one but you knows your heart is racing, so take a breath and try to ________ down.[]
A.
concern
B.
set
C.
upset
D.
calm
【单选题】(2013·济南3月模拟)You should study the details of the policy________before you sign it.
A.
in return
B.
in advance
C.
at ease
D.
on purpose
【单选题】If the balance of nature is ____ , a series of problems will arise ．
A.
disturbed
B.
troubled
C.
interrupted
D.
confused
【单选题】I would appreciate _______, to be frank, if the goods could be delivered as soon as possible.
A.
you
B.
it
C.
that
D.
myself
【单选题】A survey was carried out on the sleep time of students in middle schools, ______ were surprising.
A.
its results
B.
whose result
C.
the results of which
D.
of which results
【单选题】Walking exercises ____ be boring at times, but on a clear sunny morning nothing could be better. [ ]
A.
may
B.
will
C.
must
D.
should
【单选题】This kind of cell phone is very common and I also have ______.
A.
one
B.
it
C.
that
D.
another
【单选题】All students are requested to be present at the meeting ______ in the school auditorium at 1:30 pm.
A.
being held
B.
having held
C.
to be held
D.
to hold
【单选题】He asked me how much ________ on the mountain bike.
A.
did I pay
B.
I had spent
C.
did I spend
D.
I had cost