问题补充:
My grandparents asked me to go and see them whenever.
A. I am convenient
B. I will be convenient
C. it is convenient
D. it will be convenient
答案:
A. I am convenient
B. I will be convenient
(答案→)C. it is convenient
D. it will be convenient
解析:形容词,convenient 方便的,不用人做主语,常用句型it is convenient for sb,在时间状语从句中应用一般现在时态表将来。句意:我的爷爷奶奶要求我无论什么时候方便的话去看看他们。所以选C。