Bộ 20 đề ôn thi vào Chuyên Anh năm 2023 cực hay có lời giải (Đề 37)

Kate had been_______ in order to buy a new laptop, but then she decided to use the money on the guitar.

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Kate had been_______ in order to buy a new laptop, but then she decided to use the money on the guitar.

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Giải thích

saving up