Giải SGK Tiếng anh 10 English Discovery (Cánh buồm) Unit 2 Focus review 2 trang 25 có đáp án
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Did they use to use / Did they use GPS when they were climbing in the Alps?

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Did they use to use / Did they use GPS when they were climbing in the Alps?

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Giải thích

6. Did they use

Họ có sử dụng GPS khi họ đang leo núi ở Alps không?