题目内容
【题目】
(2013 内蒙古包头一中期中)There is a limit __________ people's life, but no limit __________ the knowledge.
A. on; to learn
B. to; to learn
C. on; learning
D. to; to learning
【答案】D
【解析】句意:人生有涯,学无涯。a limit to sth/doing sth. to为介词,后跟名词或动名词作宾语。选D
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