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

Now a new recycling process promises to reduce this problem by turning old plastic (78) ………………….. new.

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Now a new recycling process promises to reduce this problem by turning old plastic (78) ………………….. new.

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Giải thích

Now a new recycling process promises to reduce this problem by turning old plastic (78) into new.