Chia động từ sau ở thì quá khứ đơn

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Quá khứ đơn
4. His family travelled to Greece by airplane.
5. My sister spent $20 on that shirt.
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6. Tommy helped his father in the garden.
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7. Alan passed all of the exams of the last semester.
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8. My father bought two gifts for me and my sister.
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