ответ: 1. Keeping a healthy weight lowers your risk of developing certain illnesses in the future.
2. When you work out, play a sport of even just go for walk, the muscles and bones in your body become stronger.
3. Heart is a muscle too, physical activity can keep it strong and healthy.
4. When you take part in a low-intensity activity, you do not sweat and your breathing is not affected greatly. Moderate-intensity activities should make you sweat and your heart beat faster. You cannot sing , but you can continue talking.
5. You start to sweat sooner and cannot talk without getting out of breath.
Объяснение:
1. (Shall I see) you before you (to start)?
2. What (will he do) when he (arrives) in the USA?
3. Where (will they go) if the weather (is) fine?
4. He (will ring) me up when he (returns) home.
5. If it (rains), we (shall stay) at home.
6. She (will walk) home if it (isn't) too cold.
7. I am sure he (will come) to say good-bye to us before he (leaves) to Italy.
8. Please turn off the light when you (leave) the room.
9. If we (are) tired, we (shall stop) at a small village and (shall have) a short rest and a meal there.
10. If you (miss) the 10.30 train, there is another at 10.35.
11. She (will make) all the arrangements about it before she (flies) there.
12. Before he (starts) for London, he (will spend) a day or two in a camp not far from here.
