They (analyze) ..................the result of an experiment over the last hours without any break.

Câu hỏi :

They (analyze) ..................the result of an experiment over the last hours without any break.

A has analyzed

B has been analyzed   

C have been analyzing

D analyzed

* Đáp án

C

* Hướng dẫn giải

Phương pháp giải:

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