have you studied recently?还是 did you have studied recently?

问题描述:

have you studied recently?还是 did you have studied recently?
还是二者都可以?
1个回答 分类:英语 2014-10-11

问题解答:

我来补答
have作助动词,所以只有have you studied recently正确.
have做助动词与动词的过去分词一起构成现在完成时和过去完成时.
Great changes have taken place the last two years.(JBⅥL3)
They said that the Arab had stolen their camel.(JBⅤL4)
 
 
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