Remember to return your application form by mail on.后面为什么要加一个on?为什么不直接用by mail?Remember to return your application form by mail on or before 15 May

remember to return my book的同义句 Remember to return the book to the library.=___ ___ you will return the book to the library. 关于ruturn的用法的~please remember to__________A.return my pen B.return my pen back C.return back my pen D.return to my pen还有~ruturn 和give back Remember to return your application form by mail on.后面为什么要加一个on?为什么不直接用by mail?Remember to return your application form by mail on or before 15 May remember（）the book to the library when you finish （）it 说明原因A.returning ,to read B,returning C,to return,reading D,returning ,to read I remember Mun ___ you about his return to Shanghai this morningA is telling B told C has told D to tell我只知道remember to do 和 doing 所以为什么选told Did you remember to return the book to our English teacher?怎么有两个to?Did you remember to return the book to our English teacher?怎么有两个to?它们的语法结构是什么?第一个to是不定式,那么第二个to是什么意思?为什 he didn't remember ＿the book and said he would give it to me the next daya .to return c .returning 为什么 不能选a啊 Remember to return the book to the school library in time.____you will be fined.A or B and C but D then return sth.to sb.=return sb. 是return sp.还是return to sp. return to Beijing 还是 return Beijing return to the return to the return to the earth You will return to 英语翻译return to 用return to造句