Modal verbs

1. Complete the sentences. Use must, mustn´t or needn´t. 1 I mustn´t go to bed late tonight. I’m planning to get up early tomorrow morning. 2 Benny must work harder. He’s going to fail his exams, if he doesn't.3 We needn´t go shopping this afternoon. The fridge is full.4 I’m going to tell you a secret, but you mustn´t tell anyone!5 You needn´t shout! I can hear you!6 You mustn´t smoke in restaurants in the UK. It’s illegal.7 You must cross the street at the pedestrian crossing8 We needn´t give Fran a big present. Something small will be OK. 2. Rewrite the sentences. Use must, mustn´t or needn´t. 1 Don’t speak with your mouth full. You mustn´t speak with your mouth full.2 It’s important to wear nice clothes at a wedding.You must wear nice clothes at a wedding.3 It isn’t necessary to give Dave a present. You needn´t give Dave a present.4 Don’t forget to send a Mother’s Day card. You mustn´t forget to send a Mother´s Day card.5 It isn’t necessary to take your shoes off.You needn´t take your shoes off. 3. Fill in the gaps with mustn´t or needn´t. A teacher is speaking to his students before a test:„You are going to have a test today. Your test papers are on your desks. You mustn´t begin until I tell you. You needn´t hurry, you have plenty of time. You mustn´t speak during the test. You mustn´t copy your friends´ work and you mustn´t open any of your books. You needn´t write in pen; if you prefer you can write in pencil. You needn´t stay when you´ve finished, you can leave if you want to, but you mustn´t be noisy. Finally, I wish you all good luck. You can begin now!“ 4. Choose, to complete each sentence, either should or shouldn´t. 1. Listen to that music! Our neighbours shouldn´t play music that loud at this hour.2. If your tooth is still hurting you tomorrow, you should go to the dentist's.3. Cathy shouldn´t keep ringing her ex-boyfriend. I think he is with another girl now.4. You should always knock on the door before entering. This is a private office.5. We should bring something to Kate's party. I'll feel really embarrassed otherwise.6. Pregnant women shouldn´t smoke as it can damage the baby.7. We shouldn´t leave too late tomorrow if we want to reach the beach before lunch.8. She's always tired. She shouldn´t go to bed late every night.9. You should ask the teacher to help you if you don't understand the lesson. 5.1. Shh! We ...........................wake my little brother. He´ll start crying. don´t have to needn´t mustn´t have to 5.2. We ............hurry. My aunt is never ready on time. must can can´t needn´t 5.3. My company said that if I want this promotion, I ............................ go to the doctor's for a thorough medical check-up first. can don´t have to must have to 5.4. Jane, thanks for everything. It was a great party. I ....................... go now. I am really tired. have to must don´t have to can 5.5. You ............................. to pay for a plastic bag at many supermarkets. They are free of charge. can´t mustn´t have don´t have 5.6. All children have to fasten their seatbelts when travelling by car. ought must have to need 5.7. You look very confused by the homework, Clive. .................I help you? can must ought need 5.8. You ................. touch the paintings in an art gallery. It´s forbidden. can can´t don´t have to mustn´t 5.9. He´s amazing, he ............ speak five languages, including Chinese. should can ought can´t 5.10. She´s seven years old, but she ................read yet. Her parents are getting her extra lessons. must can can´t mustn´t