143. We often hear the old man sighed with feeling “The younger don't know what hard work

发布时间：2020-08-16 07:08:48


143. We often hear the old man sighed with feeling “The younger        don't know what hard work it is!”
A. girls
B. boys
C. generation
D. Parents

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A. girls
B. boys
C. generation
D. Parents
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