Do you think important us to learn a foreign language?A. that; ofB. it; for C. this; isD

问题补充：

Do you think important us to learn a foreign language?

A. that; of

B. it; for

C. this; is

D. that; for

答案：

A. that; of

(答案→)B. it; for

C. this; is

D. that; for

解析：形式宾语用法，it-----for sb. to do sth.句式。