问题
选择题
We have two rooms to live in, but I can't decide_________.
A．to choose which one
B．choose which one
C．which one to choose
D．which one will I choose
答案
答案：C
特殊疑问词+to do 如果特词为疑问代词，do为及物动词，而特词为疑问副词时，do 为及物动词后接宾语，故选C