问题补充：
I think necessary to take more exercise.
A. it; for Jim and me
B. it’s; to Jim and me
C. that; for Jim and I
D. that’s; to Jima and I
答案：
(答案→)A. it; for Jim and me
B. it’s; to Jim and me
C. that; for Jim and I
D. that’s; to Jima and I
解析：考查句型结构sb thinks it +adj+for sb+to do sth 某人认为做某事怎么样。
