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　　Air is all around us. It is around us _1_ we walk and play. From the time we are born air is around us on every side. When we sit down, it is around us. When we go to bed, air is also around us. We live _2_ air.

　　All _3_ things need air. We _4_ live without food or water for a few days, but we can't live for more than a few minutes _5_ air. We take in _6_. When we are working or running we need _7_ air. When we are asleep, we need _8_ air.

　　We live in air, but we can't see it. We can only feel it. We can feel it when it is moving. Moving air is called wind. How can we make air _9_?

　　Here is one way. Hold an open book in front of your face. Close it quickly. What can you feel?  _10_ you feel is air.

　　1.A.asB.after  C.because  D.since

　　2.A.underB.in  C.below  D.with

　　3.A.live B.living C.alive  D.with

　　4.A.can   B.won't C.can't D.lively

　　5.A.out of  B.with C.without  D.out

　　6.A.water  B.air  C.food  D.wind

　　7.A.more  B.most C.many   D.few

　　8.A.least B.much  C.no   D.less

　　9.A.move B.to move C.moving D.moved

　　10.A.What B.That C.Where D.Which

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