For most of their history, especially since the 1860's, New York City has been undergoing major ethnic popul...

Câu hỏi :

For most of their history, especially since the 1860's, New York City has been undergoing major ethnic population  changes.

A their 

B especially 

C the 

D changes

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

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