It wasn’t until 1970 the war finally came to an end after seven years of hard fighting.A.

发布时间：2020-08-17 10:49:30

It wasn’t until 1970      the war finally came to an end after seven years of hard fighting.
A. that
B. before
C. when
D. since

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A. that
B. before
C. when
D. since
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