not until his father was out of prison to school,——————

not until his father was out of prison to school,——————

题目
not until his father was out of prison to school,——————
a.can Jay go
b.Jay can go
c.could Jay go
d.JAy could go
选哪个?为什么呢?
感谢
答案
c 首先是倒装 not until的固定句式 根据前面的was后面用过去时
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