第1个回答 2012-09-22
How hard you study!
What a hard student you are! 就是这个本回答被提问者采纳
第2个回答 2012-09-22
How carefully you study！
What a diligent student you are！
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第3个回答 2012-09-22
How hard you study!
What a hard student you are!
第4个回答 2012-09-22
How serious you study
what a diligence student you are