问题
选择题
We have made ______ clear that we are strongly against smoking in the office.
A．this
B．that
C．it
D．one
答案
答案：C
题目分析：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。
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