I visit my grandparents twice a month.对划线部分提问,划线部分为twice.do you visit your grandparents every month?

问题描述:

I visit my grandparents twice a month.对划线部分提问,划线部分为twice.
do you visit your grandparents every month?

How many times do you visit your grandparents every month?
或者
How frequent do you visit your grandparents every month?