important us to listen carefully in class!
A. That’s; of
B. It’s; for
C. This is; for
D. It’s; of
网友回答
A. That’s; of
(答案→)B. It’s; for
C. This is; for
D. It’s; of
解析：
试题分析:强调句式， It is adj for sb to do sth，做某事对某人来说怎么样。本句中it是形式主语，指代后面不定式内容做形式主语，this和that无此用法，结合语境可知选B。