He is a kind-hearted boy and he will e to the Old Folks' Home whenever .
A. he is convenient
B. he will be convenient
C. it is convenient to him
D. it will be convenient to him
网友回答
A. he is convenient
B. he will be convenient
(答案→)C. it is convenient to him
D. it will be convenient to him
解析：考查时态和convenient用法。Convenient的主语不能是人，只能用于 it is convenient to sb最某人是便利的；同时在时间状语从句或者条件状语从句中使用一般现在时代替将来时，故C正确。