Fill in have to, don’t have to. Translate into Russian

VAR II.
Fill in have to, don’t have to. Translate into Russian.
You ….. water the plants. I’ve already done it.
He ….to help me. I’m bad at maths.
Do you …. leave so early? Please, stay with us!
Write down and translate questions to the following
sentences:
He didn’t go to the park yesterday.
His father is a doctor.
I go on a diet.
They should do more exercising.