Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có đáp án (Đề 4)

Now a group of companies has developed a new method (82) ………………….. recycling that could save almost all plastic waste.

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Now a group of companies has developed a new method (82) ………………….. recycling that could save almost allplastic waste.

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Now a group of companies has developed a new method (82) of/for recycling that could save almost allplastic waste.