What he wanted to know ______ why they didn’t tell him.A.are B.was C.were D .is

题目

What he wanted to know ______ why they didn’t tell him.A.are B.was C.were D .is
这句话怎么翻译,没看懂,为什么选D

答案

B

主语从句后接单数谓语, D 的时态不一致


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