We can do a wide variety of things for our clients: we can type all their letters and prepare any documents that they might need sending out.
老师们好，请问这句话中的they到底是指clients 还是documents? 后面的that从句是同位语从句吗？（意思有点怪怪的！）
We can do a wide variety of things for our clients: we can type all their letters and prepare any documents that they might need sending out.
老师们好，请问这句话中的they到底是指clients 还是documents? 后面的that从句是同位语从句吗？
【答】they 是多余的，应删去。关系代词that 不是指clients，更不是letters，而是指documents。这从结构和意思上，就能判断出来：
1. clients是“顾客”，“人”是不可以被send out的。除此之外，在结构上，定语从句that might need sending out，与冒号前面的内容无关。
2.宾语 letters 和documents 都有各自的受事动词type 和prepare，所以用and 连接起来，也就是说，定语从句只能修饰documents，不可以修饰letters。倘若letters 和documents 是同一个受事动词，那样，定语从句就是修饰这两个名词了。
