We were flying_______the clouds and saw the blue sky. [ ]A. over B. on

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We were flying_______the clouds and saw the blue sky.  [     ]
A. over
B. on
C. above
D. up

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举一反三

—When did he work_______the railroad?
—From 1904 to 1909.    [     ]
A. in
B. on
C. at
D. of

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You still see his plays________English and________ many other languages. [ ]
A. with ; with
B. in ; in
C. with ;in
D. in ; with

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He was able to play the piano________the age of four. [ ]
A. in
B. of
C. at
D. to

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It"s bad for your body to stay _____ till midnight.         [     ]
A. to
B. up
C. for

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He left us ______saying goodbye to us.               [     ]
A. without
B. with
C. instead

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