题目内容:
—Why does he look sad? -There are so many problems ______.
A. remaining to settle B. remained settling C. remaining to be settled D. remained to be settled
参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析:
—Why does he look sad? -There are so many problems ______.
A. remaining to settle B. remained settling C. remaining to be settled D. remained to be settled