Someonecalledmeupatabout11∶30last

发布时间：2020-07-26 20:36:42

Someone called me up at about 11∶30 last night, but he hung up ________ I could answer it.A.asB.sinceC.untilD.before

网友回答

D解析but表示转折，意味着“我”没有接起电话，hung up应该是在I could answer it之前，故用before．
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