问题描述：
题目为Many a student_for their hard work.
选项为A.are highly praised B.have been highly praised C.would be praised D.has been well thought of 请问选哪个及理由
选项为A.are highly praised B.have been highly praised C.would be praised D.has been well thought of 请问选哪个及理由
问题解答：
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