To be admitted to a key university, _______.A.our parents always impress on us the importance of hard workB.some universities attach great importance to students’ gradesC.all the students in senior 3 are making every effort to study hardD.good grades are quite necessary
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C解析试题分析：考查不定式用法。当不定式在句中做状语的时候，不定式的逻辑主语就是句子的主语。本题的不定式to be admitted to a key university的逻辑主语是学生，故选项中只有C项的主语是学生，故C正确。考点：考查不定式做状语用法
点评：当不定式在句中做状语的时候，不定式的逻辑主语就是句子的主语。