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【单选题】
If students are not satisfied with their grades,should the college allowe them to____grades with thire professoes?A.
reflect on
B.
complain
C.
negociate
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举一反三
【单选题】—Hi, Tracy, you look tired. —I am tired. I ______ the living-room all day.
A.
painted
B.
have been painting
C.
had painted
D.
have painted
【单选题】Hi, Traly, you look tired. I’m tired. I the living room all day.
A.
painted
B.
had painted
C.
have been painting
D.
have painted
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