问题
选择题
—Dad, when shall we go to visit my grandpa?
—Grandpa is very busy at present.We'll go to see him whenever __________.
A.he is convenient
B.he will be convenient
C.it is convenient to him
D.it will be convenient to him
答案
答案:C
首先,若用convenient表示“某人方便”之意,绝对不能使用人作主语,而应使用it,由此排除A、B选项,类似地,possible等形容词也不能以人作主语,应使用it作主语。此外,由whenever引导的时间状语从句遵循的是“主将从现”原则,由此判断答案为C