I often visit my parents who live in the countryside whenever .A. I am convenientB. it w

问题补充：

I often visit my parents, who live in the countryside whenever .

A. I am convenient

B. it will be convenient to me

C. I will be convenient

D. it is convenient to me

答案：

A. I am convenient

B. it will be convenient to me

C. I will be convenient

(答案→)D. it is convenient to me

解析：考查形容词convenient 的用法。convenient方便的，它不用人做主语，常用句型： it is convenient to sb,对某人方便的话，句意：我经常去拜访我住在乡下的父母，无论什么时候我方便的话。在时间状语从句中经常用一般现在时态表将来。所以选D。