Viết lại câu điều kiện:

1.. Lan doesn't get high marks. Her parents are not happy
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2. Lan doesn't cook well. She can't cook meals for her family.
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3. Our school is small. We don't hold big activities.
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4. This computer doesn't work. Our class don't work with it
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5. The air in the city is not fresh. Everybody doesn't feel well.
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