---Why do you look so upset? ---There ar
题型:选择题
问题:
---Why do you look so upset?
---There are so many troublesome problems _____.
A.remaining to be settled
B.remained settled
C.remaining to settle
D.remained to be settled
---Why do you look so upset?
---There are so many troublesome problems _____.
A.remaining to be settled
B.remained settled
C.remaining to settle
D.remained to be settled