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  • 科目:英语
  • 题型:单选题
  • 难度:较难
  • 人气:729

—Why do you look so upset, Linda?
—There are so many troublesome problems____.

A.remaining settled
B.remaining to be settled
C.remained to settle
D.remained to be settled
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—Whydoyoulooksoupset,Linda?—Th