My hometown a lot in the past ten years.A. changeB. changedC. has changedD. is changing

问题补充：

My hometown a lot in the past ten years.

A. change

B. changed

C. has changed

D. is changing

答案：

A. change

B. changed

(答案→)C. has changed

D. is changing

解析：现在完成时用来表示之前已发生或完成的动作或状态，其结果的确和现在有联系。动作或状态发生在过去但它的影响现在还存在；也可表示持续到现在的动作或状态。其构成： have (has) +过去分词。根据语境可知此句的含义是我的家乡近十年发生了很多的变化,因主语是my hometown是单数,故用助动词has+过去分词,故选C.