-________haveyoubeentogether?-Sincelastyear.A.WhattimeB.HowsoonC.HowlongD.

发布时间：2020-08-04 16:08:07

-________ have you been together?-Since last year.A.What timeB.How soonC.How longD.How often

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C解析根据答语应该选C，表示时间长短。
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