I don't think it is possible _____ a 5-year-old child _____

问题描述:

I don't think it is possible _____ a 5-year-old child _____
answer the question
A to;to B to;for C for;for D for;to

D
句意思:我认为让一个5岁的孩子来回答这个问题是不可能的.
it is possible for sb.to do sth.
固定句式