题目内容


—Driving after drinking alcohol should be punished, I think.
—Sure, it is several months________ the ban came to effect in the whole country.  
A.before B.until C.sinceD.after
C
It is 时间段+since +句子(句子用过去)
“--酒驾应该受到惩罚。--自从在全国开始实施已经几个月了。”
Come to effect 生效
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