问题
选择题
The villa gers have already known __________ we’ll do is to rebuild the bridge.
A．this
B．that
C．what
D．which
答案
答案：C
考查名词性从句。主语从句we’ll do 中缺少逻辑宾语，what引导宾语从句，在从句中充当宾语。其它选项无此用法。故选C。
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