1 Read these rules about have to/don't have to and must/mustn't and decide if they are True (T) or False (F). 2 Complete the sentences. Use these verbs and the correct form of have to. 3 Put the words in order to make sentences and questions. 4 Look at the notices. Write what you must or must not do.

1. Определим, какие утверждения верны (T) или ложны (F).

• 1 We use have to and must to talk about things which are obligatory or necessary. T
• 2 We use don't have to to talk about things which are obligatory or necessary. F
• 3 We use mustn't to talk about things we have permission to do. F

2. Заполним предложения, используя правильную форму глагола have to.

• 1 She has to get up at seven and go to work.
• 2 Climbers have to be careful on this mountain.
• 3 I have to fit for the race 70 kilometres a week to get.
• 4 She works for an American bank so she has to speak English well.
• 5 You have to study before a big exam.
• 6 My dad has to work late tonight. He's got a new job.

3. Составим предложения и вопросы из слов в правильном порядке.

• 1 Does Sally have to wear a uniform?
• 2 You have to be fit to play rugby well.
• 3 At weekends we don't have to practise a lot.
• 4 Do they have to buy expensive shoes for the race?
• 5 He doesn't have to practise every day.

4. Определим, что нужно или нельзя делать, исходя из знаков.

• 1 You must not dive.
• 2 You must not ride a bicycle.
• 3 You must be quiet.
• 4 You must not keep off the grass.
• 5 You must not play ball games.
• 6 You must trash.