Make question with How Often and answer

IV. Make question with How Often and answer ít.
Ex: Nam/ go to the zoo/ twice a year.
How often does Nam go to the zoo?
He goes to the zoo twice a year.
1. Mai and Phong/ go swimming/ once a week.
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2. I/ visit my grandparents/ once a week.
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3. They/ skate/ twice a week.
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4. My sister/ brush her teeth/ twice a day.
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5. My father/ do exercise/ every morning.
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