—Will you go shopping now?—Not until I ____ my experiment.A.have finished B.will finish C.finished D.had finished选哪一个?为什么?请详解 ,

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—Will you go shopping now?—Not until I ____ my experiment.A.have finished B.will finish C.finished D.had finished选哪一个?为什么?请详解 ,

—Will you go shopping now?—Not until I ____ my experiment.A.have finished B.will finish C.finished D.had finished选哪一个?为什么?请详解 ,
—Will you go shopping now?
—Not until I ____ my experiment.
A.have finished B.will finish C.finished D.had finished
选哪一个?为什么?请详解 ,

—Will you go shopping now?—Not until I ____ my experiment.A.have finished B.will finish C.finished D.had finished选哪一个?为什么?请详解 ,
选A
意思是知道我完成试验了再去购物.
完成实验的动作要先于购物的.
所以要用现在完成时.
I will not go shopping until I have finished my experiment.

C

选A.have finished
Not until I have finished my experiment.
是“I won't go shopping until I have finished my experiment.”的缩写。
所以要用将来时。

A
这是一个省略句式。
补充完整应该是I will not go shopping until I have finished my experiment。其实这里填finish更恰当一些。

选A。

A 意思是直到我完成试验了再去购物
要用现在完成时(have+动词过去分词)