Fill in the blanks with affirmative or negative forms of "must or have to/ has to".
1. You really _________ stop driving so fast or you'll have an accident!
2. I can give you my bike, so you _________ buy a new one.
3. They _________ be in a hurry, because they have got more than enough time.
4. I really __________ remember to post that letter before five o'clock.
5. Tomorrow is Sunday. You __________ get up very early.
6. This room is a mess. I really __________ find time to clean it!
7. You __________ wear a tie if you want to go to that restaurant. It's one of their rules!
8. I am broke. I __________ borrow some money to buy a car.