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题目
the professor is proving his theory to his students这句不能这样吗.the professor proves his theory to his students.用prove直接做谓语动词.

提问时间:2020-08-25

答案
这里两个句子主要区别在时态问题上.
the professor is proving his theory to his students.这一句是正在进行时
the professor proves his theory to his students.这一句是一般现在时态.
如果用prove直接做谓语动词,那样的话,表达的时态就不一样了.
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