I could have turned to Mr. Smith for help, but he ______ too busy then.A.isB.wasC.should beD.has bee

题目简介

I could have turned to Mr. Smith for help, but he ______ too busy then.A.isB.wasC.should beD.has bee

题目详情

I could have turned to Mr. Smith for help, but he ______ too busy then.
A.isB.wasC.should beD.has been
题型:单选题难度:偏易来源:不详

答案

B
本题句意“我本可能救助鱼史密斯先生的,但是他那时实在太忙了”。本句中的could have turned说明了动作发生在过去,有but转折连词,导出了后句的事实性。

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