He started to study at 2 o’clock. He is still studying now.

Câu hỏi :

He started to study at 2 o’clock. He is still studying now.

A. He has been studying since 2 o’clock.

B. He has been studying for 2 hours.

C. He was studying since 2 o’clock.

D. He usually studies for 2 hours.

* Đáp án

A

* Hướng dẫn giải

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