题目

So far this year we __ a fall in house prices by between 5 and 10 percent．（ ）A. sawB. seeC. had seenD. have seen

So far this year we __ a fall in house prices by between 5 and 10 percent．（ ）

A. saw

B. see

C. had seen

D. have seen

题目解答

答案

D. have seen

解析

步骤 1：确定时间状语
时间状语为"So far"，意为"到目前为止"，通常与现在完成时连用。
步骤 2：确定现在完成时的结构
现在完成时的结构为"have/has+过去分词"。
步骤 3：选择正确的选项
根据时间状语和现在完成时的结构，选项D（have seen）符合语境。