how long意為“多久、多長時間”,主要是對一段時間進行提問。how soon意為“還要多久”,是對從某個基本時間到將來某動作結束或某動作發生這段時間提問,常用在一般將來時態的句子中。
how long造句:
How long has she been gone?她失蹤多長時間了?
How long have you been swimming?你游泳有多長時間了?
okay,how long's he been like that?好,已經有多久了?
how soon造句:
How soon will he come back?他什麼時候回來?
How soon will the girl come back?那女孩什麼時候回來?
How soon will you finish your work?你什麼時候能完成你的工作?