题目内容
1、_______ on your study, and you will make greater progress．
A．Concentrating B．If you concentrate
C．Concentrate D．To concentrate
试题答案
1、C
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_______ on your study, and you will make greater progress．
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_______ on your study, and you will make greater progress．
A．Concentrating B．If you concentrate
C．Concentrate D．To concentrate
查看习题详情和答案>>