摘要： Students are burdened with too much exercises, their school grade. A. aiming to improve B. aiming at improving C. aimed to improve D. aimed to improving

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Students are burdened with too much exercises, _______ their school grade.

A. aiming to improve   B. aiming at improving  C. aimed to improve D. aimed to improving  

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Students are burdened with too much exercises, _______ their school grade.

A. aiming to improve　 B. aiming at improving

C. aimed at improving　 D. aimed to improving

 

 查看习题详情和答案>>

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