The city_______at one time prosperous, for it enjoyed a high level of civilization.

Câu hỏi :

The city_______at one time prosperous, for it enjoyed a high level of civilization.

A should have been  

B was      

C may have been    

D must have been

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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