Mr Hu is a good teacher.He always makes__easy to understand some difficult problems.A.that B.so C.this D.it
问题描述：
Mr Hu is a good teacher.He always makes__easy to understand some difficult problems.
A.that B.so C.this D.it
答
选d.
这里考察it的用法,it此处做形式宾语.指代some difficult problems.
答
选D,it 在此作形式宾语。
答
D it做形式宾语
答
D
答
D
make sth.+adj.使某事---
这儿的sth.是用it代替的,而真正的是some difficult problems.