—Why do you look sad?—There are so many problems ________.A．remaining to settleB．remained settlingC．

题目简介

—Why do you look sad?
—There are so many problems ________.

A．remaining to settle	B．remained settling
C．remaining to be settled	D．remained to be settled

题型：单选题难度：中档来源：不详

由于remain是不及物动词，故应用现在分词remaining，相当于定语从句that remains；动词settle置于remain之后，应用动词不定式的被动结构来表示动作还未完成。