—Why do you look sad? —There are so many
题型:选择题
问题:
—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
—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