Fill in the gaps with must or have to

Fill in the gaps with must or have to and complete the sentences. Sometimes both variants are correct. 1. I ... get up earlier today. I want to finish a very interesting book. 2. He ... read this book for his history lesson. After that, he'll ... write an essay on it. 3. They ... be here for a month. Their granny needs their help. 4. I'm sorry I ... go. I ... help Mum cook dinner. 5. I don't like potatoes but sometimes I ... to eat them. 6. You ... watch this film. It's very funny. 7. You'll ... go to the shop with me. I need your help. 8. It's very late, but I ... finish my homework before I go to bed.