Đặt câu hỏi cho các từ được gạch dưới

IV. Đặt câu hỏi cho các từ được gạch dưới.
1. Our school year starts on September 5th
.

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2. Our summer vacation lasts for three months.
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3. The longest vacation is summer vacation.
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4. I usuallv visit my grandparents during' mv vacation.
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5. My mother works eight hours a dav.
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6. Mr. Robinson is an English teacher.
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