Условие задания:

3 Б.
Turn the given sentences into negative sentences (Преврати заданные предложения в отрицательные предложения).
Use: cannot, may not, must not, don't have to,  doesn't have to.
He can drive a car.
He cannot drive a car.
1. You may leave.
2. You have to go with us.
3. You must read this book.