—Whydoyoulooksoupset?—Therearesomanytroublesomeproblems...
问题详情:
—Why do you look so upset?
—There are so many troublesome problems ____________.
A.remaining to settle B.remained settled
C.remaining to be settled D.remained to be settled
【回答】
C
知识点:非谓语动词
题型:选择题