De on lop 3
đề ôn HSG 3
... could understand me. d. I spoke slowly to make the foreigner could understand me. 12. ……………………………… on barren slopes can prevent erosion. a. To plant trees b. Planting trees c. In order to plant ... the worst pollution of all. It has harmed aquatic life by turning many lakes into lifeless bodies of water. Car exhaust fumes contain carbon monoxide and lead which are highly poisonous. In bi...
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