He often writes to his parents.He writes ______.

问题描述:

He often writes to his parents.He writes ______.
A frequently B occasionally
C sometimes D now and then
请问这道英语单选选哪个呢?
请告知为什么选那项,别的为什么不选?最后还请翻译一下这句话..

A frequently经常
B occasionally 偶尔,间或
C sometimes 有时
D now and then 偶尔,有时
根据前句,应该选A,often也是经常的意思