It is no good ____to him;he never answers letters

问题描述:

It is no good ____to him;he never answers letters
A:to write B:writing C:to have written D:having written

你好,应该选 A

这是固定句型:

It‘s no good to do sth 做某事无益

句子意思是:给他写信是没用用的,他从来不回信.