He is going to work hard get good grades math. [

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He is going to work hard             get good grades              math.   [     ]
A. to; for
B. at; in
C. to, in
D. about; in

答案

举一反三

—What time do you usually get up?
—_____ 6:00 _____ the morning. A. In; at
B. At; in
C. At; at
D. In; in

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I"m going to buy a house          a big garden.  [     ]
A. at
B. for
C. to
D. with

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They communicate _____ each other _____ e-mail. [     ]
A. with, by
B. by; by
C. with; with
D. by; with

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His sister wants to find a job_____ a language teacher.    [     ]
A. with
B. for
C. to
D. as

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Thanks        to your party next week.    [     ]
A. for me inviting
B. for your invitation
C. to inviting me
D. to invite me

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