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问一道英语必修三第五模块的英语题,1 Not until many years later____knownA did the whole truth becomeB the whole truth becomeC had the whole truth becomeD the whole truth had become答案为什么是A,不是C

题目详情
问一道英语必修三第五模块的英语题,
1 Not until many years later____known
A did the whole truth become
B the whole truth become
C had the whole truth become
D the whole truth had become
答案为什么是A,不是C
▼优质解答
答案和解析
not until通常只用于一般过去时,用于阐述过去的一个事实.
过于完成时通常从语境中可明显看出是“过去的过去”,此题中不能看出.过去完成时标志词常有by the time...before...等.