Yuri Gagarin was in orbit in a spaceship moved around the Earth at the speed of more than 17,000 miles per hour.

Câu hỏi :

Yuri Gagarin was in orbit in a spaceship                   moved around the Earth at the speed of more than 17,000 miles per hour.

A. which

B.at which

C. it

D. this

* Đáp án

* Hướng dẫn giải

Chọn đáp án A

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