The question_____ at the meeting tomorrow is very important.

The question_____ at the meeting tomorrow is very important.
A、to discuss
B、being discussed
C、to be discussed
D、will be discussed
【正确答案】：C
【题目解析】：不定式的用法。不定式短语用作定语修饰名词，主语和动词之间为被动关系，因此用被动形式。