问题 选择题
Even students of average intelligence ________ become top students by improving their study habits.
A.mustB.can
C.have toD.ought to
答案

B

解析 考查情态动词。句意为:即使智力一般的学生也可以通过改进学习习惯而成为优等生。can在此处表示“能够”。

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