问题描述：
－When did he come back home last night?
－It was not yet ten o'clock ____ he got home.
A. untiil B. when C. that D.before
答案选B,这是什么句型,请从句法角度分析,为什么不选Al,请详细解析,谢谢!
不好意思,写错了,应该是：A.until
－It was not yet ten o'clock ____ he got home.
A. untiil B. when C. that D.before
答案选B,这是什么句型,请从句法角度分析,为什么不选Al,请详细解析,谢谢!
不好意思,写错了,应该是：A.until
问题解答：
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