(2013·新课标Ⅰ，32)There's no way of knowing why one man makes an important discovery________another man，also intelligent，fails.
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A
since
B
if
C
as
D
while
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There has been ____ accidents on this part of road.
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A
a number of
B
a great deal of
C
a series of
D
plenty of
Mary________ her sister in appearance but not in character.
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A
resembles
B
looks
C
seems
D
appears
Thanks to Mr. Smith the father and the son eventually________after ten years' cold relationship between them.
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A
took up
B
made up
C
looked up
D
turned up
Don’t try to cheat in the exam; you will never _______ it.
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A
get away from
B
get rid of
C
get away with
D
get out of
Look at the timetable. Hurry up! Flight 9013 to Changsha off at 7:30.
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A
took
B
takes
C
will be taken
D
has taken