It is very   1   for us to stay in good health. We must have good eating and sleeping habits in life. Eating more fruit and vegetables   2   good for us .We are supposed to   3   at least 8 hours a day and take part in the healthy activities as    4   as possible, for example, climbing mountains, running in the morning or swimming. It is necessary to keep    5   and get on well with the people around us.

1. A．important               B．unnecessary        C．impossible        D．importance

2. A．are                    B．am                C．be                D．is

3. A．asleep                  B．sleepy             C．sleep             D．slept

4. A．much                   B．many              C．little               D．few

5. A．happiness               B．unhappy            C．happy             D．happily