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【单选题】
I hear they are going to London, but I don’t know ________ they will stay there.
A.
how soon
B.
how often
C.
how long
D.
how fast
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参考解析：
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【单选题】When traffic lights are red, we ________ stop and wait. [ ]
A.
may
B.
can
C.
must
D.
might
【单选题】You hate some chores. I hate some chores ______. [ ]
A.
too
B.
either
C.
nor
D.
neither
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A.
to; for
B.
for; of
C.
of; to
D.
of; for
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A.
spend
B.
cost
C.
afford
D.
provide
【单选题】They_____ 3000 English words since three years ago. [ ]
A.
learned
B.
had learned
C.
will learn
D.
have learned
【单选题】It’s ____ to play on the road．You’d better play in a ____ place.
A.
safe, dangerous
B.
safety, danger
C.
safe, danger
D.
dangerous, safe
【单选题】—Could you please tell me _______ yesterday? —Because the traffic was so busy. [ ]
A.
why did you come late
B.
why you came late
C.
why do you come late
D.
why you come late
【单选题】They can’t go ______ because the meeting is beginning.
A.
educational somewhere
B.
somewhere educational
C.
educational anywhere
D.
anywhere educational