If she doesn't tell him the truth now,he'll keep on asking her until she ( ) 这里答案填...If she doesn't tell him the truth now,he'll keep on asking her until she ( ) 这里答案填的是does 我的疑问是为什么不能填will do?
问题描述：
If she doesn't tell him the truth now,he'll keep on asking her until she ( ) 这里答案填...
If she doesn't tell him the truth now,he'll keep on asking her until she ( ) 这里答案填的是does 我的疑问是为什么不能填will do?
答
时间状语从句,主将从现,主句用将来时,从句用一般现代式表将来
he'll keep on asking her until she does.
until..does引导了一个时间状语从句,does是代动词,代替前面的动作tell.