题目内容

Why did you just sit and watch? You _______ me.
A.could helpB.should help
C.could have helpedD.must have helped
C
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。
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网