How long will Tom come back?应该如何改错呢

How long will Tom come back?应该如何改错呢 how long will be how long will I wait How long will it take? how long does tom learn chinese?是什么 How long have ;Tom and Mary -------[结婚] How long will I have to HOW long will you stay there How Long (Will This Love Last) 歌词 How long will your parents ____?(离开) How long will you be a___ how long will the play last? how long will our story last? how long will be online是什么意思 how long 能不能加 will怎么加 How long will the morning run last? how long will it wake to walk 1.Tom has been to London .Could you tell me __________( )A)how long he has stayed here B)how long he stayed here C) how long he stays here D)how long he will stay here 2.Do you know the girl _____(who) parents were dead in the accideng?请注明原