题目内容：

we should have this letter to be sent.还是we should have this letter send.
我觉得是第一种对,可是那是不是就说明have sth to do这种用法不对呢?

优质解答

have sth to do :有一些事需要去做,这里的have是有的意思.have sth done:有一些事被（别人）做,这里的have是助动词,没有意思.eg:1.I have some clothes to wash.2.Can you help me have the clothes washed?所以,你...