Have the villagers already known we’ll do is to rebuild the bridge?A. thisB. thatC. whatD

问题补充：

Have the villagers already known we’ll do is to rebuild the bridge?

A. this

B. that

C. what

D. which

答案：

A. this

B. that

(答案→)C. what

D. which

解析：考查名词性从句。known后跟宾语从句作宾语，宾语从句中包含一个主语从句 we’ll do，do后缺少宾语，用what引导宾语从句并在从句中作宾语；this不能引导从句，that引导名词性从句，本身无意义，只起引导作用，which指“哪一个”，排除A、B、D，故选C。