Преврати заданные предложения в отрицательные предложения. 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. Nick may come today.
.
2. I have to visit my grandmother.
.
3. He can draw.
Nick may not come today.
I don't have to visit my grandmother.
He can not draw.