问题
选择题
To get an education, _______.
A．working hard is very important
B．working hard is needed
C．one must work hard
D．it is needed to work hard
答案
C
非谓语动词作状语，其逻辑主语要和主句的主语保持一致。to get的逻辑主语应为one(人)。故选C。
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