He is going to write （ ）his mother a letter tomorrow请问用在括号里加个介词之类的吗?
问题描述：
He is going to write （ ）his mother a letter tomorrow请问用在括号里加个介词之类的吗?
答
相信我 不用加.
write sb. a letter固定搭配
变换一下可以说write a letter to sb.