Dùng từ gợi ý để hoàn thành câu
1.When/it/nice/family/spend/weekend/grandparents/farm.
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2.Trash/pollute/land/rivers/oceans.
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3.smoke/factories/a cause/air pollution
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1.When/it/nice/family/spend/weekend/grandparents/farm.
=when it is nice, my family spend our weekend on our grandparents' farm
2.Trash/pollute/land/rivers/oceans.
=>trash pollutes land, rivers and oceans
3.smoke/factories/a cause/air pollution
=>smoke from factories causes air pollution
1. When it is nice , my family spend our weekend on our grandparents ' farm
2. Trash pollutes land , rivers oceans
3. Smoke from factories causes air pollution