题目内容
18、It was not until he got home __________ Mr. Brown realized he had left his keys in his office.
A.that B.when C.where D.before
试题答案
18、A
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题目内容
18、It was not until he got home __________ Mr. Brown realized he had left his keys in his office.
A.that B.when C.where D.before
试题答案
18、A