PAG.127 ESERCIZIO 1
1 You must have valid insurance.
2 You must be at least 17 years old.
3 Passengers must wear a seatbelt.
4 You mustn't drive under the influence of alcohol or drugs.
5 You mustn't use a mobile phone while driving.
6 People under 12s mustn't sit in the front.
7 You don't have to carry a first aid kit.
8 You don't have to spare light bulbs.
9 You don't have to carry a high visibility test.

PAG.127 ESERCIZIO 2
1 You have to take this medicine twice a day.
2 You don't have to pay in pounds.
3 You mustn't use mobiles here.

PAG.127 ESERCIZIO 3
1 A You mustn't tell Fiona about the party - it's a surprise!
   B Don't worry, I won't.
2 A You were late home last night.
   B Yes, there were no buses, so we had to walk home.
3 A I saw you in the city centre yesterday. Why weren't you at school?
   B Oh, we didn't have to go to school yesterday. It was closed. Well, the teachers had to go - it was a
      training day for them.
4 A Sorry, we're late. We must wait for the bus.
   B No problem.
5 A Do you have to go to school on Saturdays?
   B Yes, unfortunately. But we only have lessons until 12 o'clock.
6 A Must everyone go to the meeting this afternoon?
   B No, not everyone.
7 A The fire alarm went off in school today, so we all had to leave our classes and wait outside.
   B Did you have to stay outside for long?
   A No, only about ten minutes.
8 A Do you have to wear a uniform at your school?
   B No, luckily - I hate uniforms. What about at your school?
   A No, we don't. but we mustn't wear jeans and we must be smart.

PAG.129 ESERCIZIO 1
1 You need a sower.
2 He needs some helps.
3 She needs a new mobile.
4 You need a dictionary.
5 You and your friends need some food.
6 She needs some sleep.

PAG.129 ESERCIZIO 2
1 A Are you coming to the cinema with us this evening?
   B Maybe, but I need to do some homework first.
   A OK, but you'll be there by 7.30. the film starts at 7.45.
2 A There isn't going to be a PE lesson tomorrow, so you needn't have to bring your PE kit.
   B Great - we can go home early!
   A Well, no - there's going to be an extra French lesson, so you need to be here for that.
3 A I need to go to town. Do you want to go with me?
   B Sure. What do you need to go into town for?
   A Oh, I need to get a birthday present for Paula. She's 16 on Friday.
4 A Have you fixed your computer?
   B Yes, I just need to reinstall some software. Luckily, I needn't have to take it to the shop to be repaired
      that's really expensive!
5 A What's your new phone like?
   B It's OK. The only thing I don't like is that the battery needs charging every day.
6 A Is there anything I can do to help clean up?
   B Well, the dishes need washing. Could you do them, please?
7 A There's a lot of black smoke coming out of my scooter.
   B Maybe the oil needs changing.
   A I don't know how to do that. I'll need to take it to a mechanic, I guess.

PAG.129 ESERCIZIO 3
1 We didn't need to rush / needn't have rushed to the station. The train was late.
2 Jane got the bus to the airport, so I didn't need to give her a lift.
3 I forwarded the email to Christina, but I needn't have because she'd already got it.
4 We found your house easily. We didn't need to ask / needn't have asked for directions at all.

PAG,129 ESERCIZIO 4
1 There's no need to worry.
2 There's no need to tell her
3 There's no need to hurry