do,did.does到底有什么分别?它们的用法和分别...

do,did.does到底有什么分别?它们的用法和分别... do does did 分别在什么时候用.有什么区别? Do,Did,Does造句! do,does,did do did does分别用于第几人称?do did does在疑问句中分别用于第几人称? do,did,does助动词和be,is,are,were,was是动词有什么用 英语高手请进来.did do does doing going to do 什么时候动词要用原形,（是不是did,do,does,doing后面动词都要用原形）这四个单词分别表示什么,在什么情况下使用,这四个单词都有什么关系,when what where What does Li Ming do?What did Li Ming do?​这两句话有什么区别? do does did都在什么情况下用 do does did的用法 do,does,did的用法, In my opinion,what Sun Yang______good to the international status of our country.A.did do does B.does did do C.did does do D.does do did 请问选什么?为什么? do does did的用法do does did的用法do does did的用法do does did的用法do does did的用法 does anyone ever air this room和did anyone open this window有什么区别,为什么一个用do一个用did? do did does was的用法什么情况下用did do does was来提问?感觉DODE 和 DID 差不多 变反义疑问句时have has做谓语时助动词用do did does.have has分别与do did does那个对应?快 does do did done 这四个单词分别在什么时候使用? Do和does有什么区别?