9. Заполни пропуски нужной формой глаголов to be или to have, выражающих значение долженствования, и переведите предложения.
1. Ann______________ to open the window for a while every day, because her grandpa doesn’t go out.
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2. He ______________to wear glasses as his eyesight is very weak.
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3. Jack _____________ to do it, because his wife was ill.
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4. My father _____________ to give some money to our mother.
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5. You _________________to learn all the rules for the next lesson.