17．用方框內(nèi)所給單詞的適當(dāng)形式填空，使短文通順、正確、連貫（每個(gè)單詞限用一次）
| work，ever，rich，to，care，bad，go，down，doctor，with |
An apple a day keeps the doctor away．Well，milk may （61）workin the same way!
Milk is the natural food form mammalian（哺乳動(dòng)物的）babies．It helps them grow strong because it is（62）richin protein（蛋白質(zhì)），calcium（鈣）and vitamins．
Milk can also help you sleep better because it calms you （63）down．But remember to drink milk with （64）care．Find out how old the milk is．Make sure it's fresh and hasn't gone（65）bad．
Don't drink milk when your stomach is empty．Eat some bread or corn at the same time．That'll help you take in more protein and vitamins．
（66）Doctorssay teens need at least 500ml of milk a day．That's two （67）tothree cups．
Is milk just a good drink？Not at all．People can use it to do lots of things．Can you think what they are？If your white clothes get dirty（68）withink，don't worry．Wash it with clean water first．Then wash it with old milk．After you wash it with detergent（洗滌劑） the third time，you'll find it's as white as （69）ever．
But for fruit stains（污點(diǎn)），you need to take care of them in another way．Firstly，apply some milk to the dirty place．After several hours，wash it with clean water．Then the stains will be（70）gone．
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