问题
It’s ________ hard for us ________ understand what hesaid.
A: to; too
B: too;to
C:to; to
D: too; too
B: too;to
C:to; to
D: too; too
正确答案是：
同类题型
It took us several hours to make the old man ______ of the safety of traveling by air.[ ]
Modern furniture would be ____ in a Victorian house
_______ email is becoming more popular with many people, I still like writing to my friends.
Little Tom was in seventh heaven when he got a fashion bicycle for his birthday.