看一道高中英语选择题The past decades____great changes in my hometown,

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看一道高中英语选择题
The past decades____great changes in my hometown, where you can see many new buildings______here and there.
答案上,第一个空填has witnessed 第二个空填have sprung up
我的问题是,第一个空能不能填witnessed 第二个空能不能天sprung up 为什么

1.翻译：过去的数十年见证了我家乡巨大的变化,在那里（我家乡）你可以看见很多新房子如雨后春笋般到处涌现.
2.一楼对现在完成时的解释比较到位,不过漏了一点,即：现在完成时除了表示对现在的结果或影响外,还可以指动作从过去发生,一直延续到现在.
而此题恰恰是考察后一点.
3.第一句类似于这样的句子：Great changes have taken place in my hometown in the past decades.
而如果使用“in/during the past/last + 一段时间(decades)”做时间状语的句子,它一般使用现在完成时或现在完成进行时.
4.而第二空相当于对great changes的具体解释,所以和前句保持一致,也用现在完成时.

看一道高中英语选择题The past decades____great changes in my hometown, In the past few years there____great changes in my hometown. Great changes ---- in my hometown in the past few years. The Changes in My Hometown In the past years,there （）great changes in my hometown 填 ha Great changes have taken place in my hometown in the past fe in the past few years there( )great changes in my hometown为什 in the past few years there____ great changes in my hometown 1.In the past few years there ——great changes in my hometown In the past few years there___ great changes in my hometown? My hometown has (e ) great changes in the past 20 years. 英语作文：The Changes in My Hometown