Jack could have avoided that terrible car accident, but he ________ careful enough.A.is notB.was not

题目简介

Jack could have avoided that terrible car accident, but he ________ careful enough.A.is notB.was not

题目详情

Jack could have avoided that terrible car accident, but he ________ careful enough.
A.is notB.was notC.hasn’t beenD.hadn’t been
题型:单选题难度:偏难来源:不详

答案

B
考查时态。根据could have avoided可知本句是对过去所发生情况的虚拟,but后面使用陈述语气,所以使用过去时。句意:Jack本可以避免那可怕的事故,但是他不够小心。

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