The two presidents agree with each other on the whole, but much remains ____ at the following meeting.
A、discussing
B、discussed
C、to discuss
D、to be discussed
【正确答案】：D
【题目解析】：【考点点击】本题考查 remain后面跟不定式的被动结构。【要点透析】 remain to be done意为“有待要做”,动作尚未发生。由题干中的 at the following meeting可知,D项符合题意
