现在完成时中have done 比如I have done the work中have 和done 各自在句中充当什么成
现在完成时中have done 比如I have done the work中have 和done 各自在句中充当什么成
shall have done和would have done在虚拟语气句中是什么意思?
高中英语中might have done 和could have done
非谓语动词中being done ,done,having been done,have done 有什么区别
have sth done 结构中 done 做什么词性?
have sb done中have是什么词
I have done和I am done有什么不同?
歌曲中含有TO DO :TO BE DONE :TO HAVE BEEN DONE :TO HAVE DONE
would have done 和would had done 分别用在什么句子中?请举例句说明(虚拟语气的用法)
could have done和should have done
have been done和 have done
I have ever done .