—My brother and I will go to the library tomorrow.—. Shall we go together?A. So I doB. S

问题补充：

—My brother and I will go to the library tomorrow.

—. Shall we go together?

A. So I do

B. So do I

C. So will I

D. So I will

答案：

A. So I do

B. So do I

(答案→)C. So will I

D. So I will

解析： 略