Đề thi liên quan:

Danh sách câu hỏi:

Câu 9:

The........................ causes many more floods.

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Câu 14:

If they breathe (2)............ air, they will have breathe problems and become (3)...........

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Câu 15:

If they breathe (2)............ air, they will have breathe problems and become (3)...........

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Câu 16:

A lot of things in our lives create harmful gases and (4)............. the air dirty like cars, motorbikes and factories. Dirty air is called polluted air.

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