We have made clear that we are strongly against smoking in the office.A. thisB. thatC. i

问题补充：

We have made clear that we are strongly against smoking in the office.

A. this

B. that

C. it

D. one

答案：

A. this

B. that

(答案→)C. it

D. one

解析：考查it做形式宾语：make it+adj+that从句，that引导的是宾语从句，it是形式宾语，句意：我们已经明确了我们强烈反对在办公室抽烟。选C。