important for us English well.
A. It’s, to learn
B. This is, to learn
C. It’s, learning
D. This is, learning
网友回答
(答案→)A. It’s, to learn
B. This is, to learn
C. It’s, learning
D. This is, learning
解析:本题考查的是固定词组句型:It‘s +adj+for sb to do sth,it为形式主语,真正的主语为动词不定式短语,故选A