Question

Fill in: must, mustn't, have/has to, don't have to. 1. You 1)........take a break every hour to give your eyes a rest and your body a stretch. You screen 2)...........be a close ti your eyes. There 3)..........be a distance of 45 to 60 cm between you and the screen. The top of your screen 4)..........be at the same height as your eyes. You 5).........buy a special chair, but it 6)........have a brackrest.

Answer 1

Ответ:

You must take a break every hour to give your eyes a rest and your body a stretch. You mustn't be too close to your eyes. There has to be a distance of 45 to 60 cm between you and the screen. The top of your screen has to be at the same height as your eyes. You don't have to buy a special chair, but it must have a backrest.

Объяснение:

Answer 2

Must: 1. You must take a break every hour to give your eyes a rest and your body a stretch. - This means it is necessary or obligatory for you to take a break every hour.

Mustn't: 2. You mustn't be too close to your eyes. - This means you are not allowed or prohibited from being too close to your eyes.

Have/Has to: 3. There has to be a distance of 45 to 60 cm between you and the screen. - This means it is required or necessary for there to be a distance of 45 to 60 cm between you and the screen.

Don't have to: 4. The top of your screen doesn't have to be at the same height as your eyes. - This means it is not necessary or required for the top of your screen to be at the same height as your eyes.

Must: 5. You must buy a special chair. - This means it is necessary or obligatory for you to buy a special chair.

Must: 6. But it must have a backrest. - This means it is necessary or obligatory for the special chair to have a backrest.