The letters for the boss_ on his desk but he didn’t read them until three later.A.were put

题目

The letters for the boss_ on his desk but he didn’t read them until three later.A.were put
B has put 为什么不用has put
不好意思 是three day later 少打了~

答案

put 和letter是动宾关系,所以要用被动语态.并且letters 是主语,不能用第三人称单数has的形式
如果用完成时,那也要用have been put,而不是has put