Aterribleaccident________,however,oc

发布时间:2020-07-09 14:58:16

A terrible accident ________,however, occur the other day and we witnessed it ________ accident.













A.does; by












B.did; by











C.has to; on











D.had to; on

网友回答

B解析前面句子表示强调,出现时间状语the other day用一般过去时而不是一般现在时; by accident表示“碰巧,偶然”。
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