What is the best way to keep fit? why? ответьте на вопрос около 4 предложений, буду )

To my mind, the best way to keep fit is to do sports. for example, you can go to the swimming pool or to the gym. of course  some people don't have enough time, and  they can do only some exercises in the morning. it' also a good way to keep fit and be healthy.

Have the smiths been driving to the country for two hours? the smiths have been driving to the country for two hours,haven`t they? how long have the smiths been driving to the country ? have the smiths been driving to the country for two or three hours ? who has   been driving to the country for two hours? are they going to throw a great party next week? they are going to throw a great party next week,aren`t they? who is  going to throw a great party next week? when are they going to throw a great party? are they going to throw a great party next week or tomorrow?

1) her illness   was more serious than  we at first thought. (serious) 2) sorry i'm late. it took me longer to get here than i expected. (long) 3) my toothache is more painful than it was yesterday. (painful) 4) she looks about 20, but in fact she's much more than she looks. (old) 5) the problem is not so complicated. it's simplier than you think. (simple) 6) health and happiness are more important than money. (important) 7) we always go camping when we go on holiday. it's much cheaper than staying in a hotel. (cheap)