Đề thi giữa kì 2 Tiếng Anh 9 có đáp án (Đề 3)
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If he doesn't work harder, he'll lose his job. Unless

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Rewrite each sentences, beginning as shown, so that the meaning stay the same.

If he doesn't work harder, he'll lose his job.

Unless .......................................................

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Giải thích

Unless he works harder, he will lose his job.