Ivonne ____ wear formal clothes for her presentations at university, but she likes it ! You ____ tell anyone what happened here. If you do, I won't speak to you ever. Raul ____ apologise; it isn't necessary. Students ____ smoke here. According to the university policies, you can only do that outside. I mean, in the street. I ____ arrive late tomorrow. It's my final exam day. Tell your friend Claudia that she ____ now. She can stay a bit longer. What is more, we can drive her home if she wants to. Stop that child, he ____ the animals in the zoo. Actually, no one can. Please, tell the taxi driver that he ____ so fast. We have plenty of time to arrive at the airport. There's enough food for 5 people, you ____ so much Tom. You ____ these pills twice a day, 8:00 a.m. and 8:00 p.m. only. OK?

Must/mustn't - Have to/don't have to

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