Exercise is good for you, but most people really know verylittle about how to exercise properly. 1_ when you try, you canrunsintostrouble.
Many people 2_ that when specific muscles are exercised, thefat in the neighbouring area is 3_ up.Yet the 4_ is thatexercise burns fat from all over 5_ .
Studies show muscles which are not 6_ lose their strength very quickly.To regain it needs 48 to72 hours and exercise every other day will 7 _a normal level of physical strength.
To 8 _weight you should alwayswork up a good sweatwhen exercising. 9_ sweating only 10_body temperature to prevent over heating.This is 11 _water loss. 12_ You replace the liquid, youreplace the 13_ .
Walking is the best and easy-to-do exercise.It helps the circulation of blood 14_ the body, andhas a direct 15_ on your overall feeling of health.Experience says that 20 minutes 16_ 17 _isminimun amount.
18_ your breathing doesnt return to normal state within minutes after you finish 19_ , youvedone 20_ .
1.A.While B.When C.As D.So
2.A.understand B.believe C.hope D.know
3.A.built B.burned C.piled D.grown
4.A.reply B.possiblility C.truth D.reason
5.A.arm B.leg C.stomach D.body
6.A.exercised B.examined C.protected D.cured
7.A.lose B.raise C.burn D.keep
8.A.lose B.gain C.keep D.burn
9.A.Certainly B.No C.Fortunately D.Probably
10.A.raises B.reduces C.destroys D.keeps up
11.A.how B.why C.nothing but D.more than
12.A.While B.Once C.As D.Whenever
13.A.weight B.muscle C.sweat D.strength
14.A.over B.around C.throughout D.with
15.A.effect B.use C.usage D.affect
16.A.education B.sleep C.exercise D.rest
17.A.one day B.a day C.everyday D.someday
18.A.But if B.But C.If D.And if
19.A.working B.walking C.exercising D.breathing
20.A.enough B.much C.too much D.much too

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