一片英语完形填空怎么做?

一片英语完形填空怎么做?
Everyone knows enough rest for us is important.During the day we work and play,so we feel _____1____ when dark falls.No one can work day and night ___2____ any rest.If we want to go on working ____3___ ,we must have a good rest.So we should sleep at night.Our body rests while we’re ____4____ .
In the morning we are ready to work and play ___5____ .Our body grows most while we’re sleeping.Children who are tired and cross() usually ____6___ more sleep.We can get our lessons ____7_____ after we have had enough rest.
A person should sleep seven to eight ___8___ a day.But boys and girls who are eight or nine years old need ___9____ sleep every night.Our body needs plenty of air when we sleep.___10____ we get enough fresh air,we’ll feel tired when we wake up.Some people are afraid to be ____11____ .So they often cover their heads with ____12____ when they are asleep.They are wrong.While in bed we mustn’t cover our heads.Enough fresh air is ____13____ .If it is not very cold outside,we’d better keep the windows ____14____ at night,so we can have plenty of fresh air.Cool air is better than warm air.Boys and girls who want to be ___15___ must get enough sleep.
1.A.sad B.tired C.polite D.happy 2.with for off without
3.tomorrow today next year next century 4.at work at school asleep working 5.once at once again already 6.refuse get hate need 7.harder better worse cooler 8.hours seconds minutes quarters 9.less stronger faster more 10.Unless If Whether However 11.hot cold terrible warm 12.T-shirt hands bedclothes socks 13.necessary interesting delicious difficult 14.broken closed open wide 15.sick clean dirty strong