Viết lại các câu sau sang thì quá khứ đơn.
1. I am very busy with work.
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2. She has a big breakfast with her children.
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3. He goes to school by bike.
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4. Is she at home?
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5. Luke and Susan do not work outside.
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6.They aren't very well when they are back from work.
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Sinh Học lớp 12
