Turn the given sentences into negative sentences (Преврати заданные предложения в отрицательные предложения). Don't put the full stops, they are given. (Точки не ставить, они даны) Use: cannot, may not, must not, don't have to, doesn't have to.
Example He can drive a car.
Answer He cannot drive a car.
1. May he use the phone? .
2. You have to go with us. .
3. Can he cook? .
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