Commercial airliners do not fly in the vicinity of volcanic eruptions

Câu hỏi :

Commercial airliners do not fly in the vicinity of volcanic eruptions because even a small

A.fly in the vicinity

B.Amount

C.Ash

D.its

* Đáp án

* Hướng dẫn giải

 Đáp án đúng là D. its => their

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