高等继续教育 / 英语语法
正确率：100%
题型描述: 单选题
So far this year we _ _ _ _ _ _ a fall in house prices by between 5 and 10 percent.
A.have seen
B.see
C.saw
D.had seen
So far this year we _ _ _ _ _ _ a fall in house prices by between 5 and 10 percent.
A.have seen
B.see
C.saw
D.had seen
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