问题补充:
单选题Whydidyoujustsitandwatch?You_______me.A.could helpB.should helpC.could have helpedD.must have helped
答案:
C解析根据上文的过去时态可知,此句谈的是过去的事,故排除A和C。根据语境排除D。
时间:2023-10-28 01:12:49
单选题Whydidyoujustsitandwatch?You_______me.A.could helpB.should helpC.could have helpedD.must have helped
C解析根据上文的过去时态可知,此句谈的是过去的事,故排除A和C。根据语境排除D。