Would you like to help me to switch ________ the computer?[ ]A. onB. downC.

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Would you like to help me to switch ________ the computer?[ ]
A. on
B. down
C. up

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举一反三

He has lunch ______ his friends at school.[ ]
A. for
B. with
C. to

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—What happened __________ you, Mary ? You looked so sad.
—I couldn"t find my MP3. It"s a present from my mother.        [     ]
A. with
B. on
C. for
D. to

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Are you good ______ Chinese?           [     ]
A. at
B. with
C. in
D. for

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We need two English teachers ______ the English speech contest.              [     ]
A. at
B. for
C. in
D. on

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She learns something _____ art and history on Sundays.[     ]
A. in
B. of
C. for
D. about

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