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

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

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

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

letter“被”put ，因此要BE put

has been put
被动语态，信被放。
three days later不是threeday later.

如果你要用完成时的话，就必须是过去完成时 即 had been put
因为 put 这一动作发生在 read 之前，而有didn't read 可以推断出，read是发生在过去的，进而可以推断出 put 这一动作就发生在“过去的过去”，所以就该用过去完成时。并且用被动语态。即 had been put.
所以，这里的现在完成时has put是错误的。...

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如果你要用完成时的话，就必须是过去完成时 即 had been put
因为 put 这一动作发生在 read 之前，而有didn't read 可以推断出，read是发生在过去的，进而可以推断出 put 这一动作就发生在“过去的过去”，所以就该用过去完成时。并且用被动语态。即 had been put.
所以，这里的现在完成时has put是错误的。

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