Circle the correct form, have to must, don't have to, or mustn't. Tick if both forms are possible.
You don't have to / mustn't touch the oven. It's hot.
2 Do you have to | must send a photo with your
passport form?
3 The concert is free. You don't have to / mustn't pay.
4 I'm late for a meeting. I have to / must go now.
5 You don't have to / mustn't leave the door open - the dog will get out.
6 We have to / must try that new restaurant in town.
7 In Britain you have to / must drive on the left.
8 Do you have to/Must you be tall to he good at tennis?

Sure, I'll be happy to help you with your question! Let's go through each sentence and determine the correct form to use: 1. You don't have to / mustn't touch the oven. It's hot. In this case, the correct answer is "You mustn't touch the oven." This is because "mustn't" is used to give a prohibition or to say that something is not allowed. 2. Do you have to / must send a photo with your passport form? Both forms are possible here. You can say "Do you have to send a photo with your passport form?" or "Must you send a photo with your passport form?" 3. The concert is free. You don't have to / mustn't pay. The correct answer is "You don't have to pay." This is because "don't have to" means it is not necessary, but you can if you want to. 4. I'm late for a meeting. I have to / must go now. In this case, the correct answer is "I have to go now." "Have to" is used to express obligation or a requirement. 5. You don't have to / mustn't leave the door open - the dog will get out. The correct answer is "You mustn't leave the door open." This is because leaving the door open is not allowed. 6. We have to / must try that new restaurant in town. Both forms are possible here. You can say "We have to try that new restaurant in town" or "We must try that new restaurant in town." 7. In Britain you have to / must drive on the left. The correct answer is "In Britain, you must drive on the left." "Must" is used to indicate an obligation or a rule that must be followed. 8. Do you have to / Must you be tall to be good at tennis? Both forms are possible here. You can say "Do you have to be tall to be good at tennis?" or "Must you be tall to be good at tennis?" I hope this explanation helps! Let me know if you have any further questions.