【題目】The students __________ to follow the rules and study hard.

A. has made up their mind

B. have made up their minds

C. has made up his mind

D. have made up their mind

【答案】B

【解析】句意：同學(xué)們下定決心遵守規(guī)章制度并且努力學(xué)習(xí)。make up one's mind 中mind 為可數(shù)名詞，the students 為復(fù)數(shù)，相應(yīng)的物主代詞為their, mind 應(yīng)為復(fù)數(shù)。

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