we won't go home until we _________the work.A.do B.have done C.will do D.did 为什么选B?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/10 07:50:27
we won't go home until we _________the work.A.do B.have done C.will do D.did 为什么选B?

we won't go home until we _________the work.A.do B.have done C.will do D.did 为什么选B?
we won't go home until we _________the work.A.do B.have done C.will do D.did 为什么选B?

we won't go home until we _________the work.A.do B.have done C.will do D.did 为什么选B?
因为这是将来发生的事,所以主句用将来时,从句要用一般现在时,而且你是要完成了才能回家,所以得用have done的形式表示完成时.
明白吗?

B have done 现在完成时,

we won't go home until we have done the work.
直到我们完成工作,我们才会回家


若有疑问及时追问,如满意请点击下面的“选为满意答案”按钮,谢谢!O(∩_∩)O