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Donteatordrinkinthelab(
é
).Dontbringfoodor 1 to
thelab.Thereare 2 reasons.First,thebowlsandcupsareveryeasy
3 andthefoodordrinkscan 4 .Theycanmakethelabdirty.
5 ,therearemanydangerousthingsinthelab.Itisntgoodfor 6
if(
)youeatthem.Ifyouputthefoodordrinks 7 yourmouthin
thelab,itislikely(
R
)thatyou 8 someofthedangerous
things.Ofcourse,itisalwaysagoodideatowashyourhands 9 you
leavethelab.Third,foodordrinkscanatract(
)somemice(
)
andflies(
).So,ifyouarehungry 10 thirsty,eatordrink
outsidethelab.
( )1.A.drinks B.vegetables C.fruit D.milk
( )2.A.two B.three C.four D.five
( )3.A.break B.breaking C.tobreak D.broke
( )4.A.out B.isout C.areout D.beout
( )5.A.First B.Second C.Third D.Fourth
( )6.A.you B.us C.him D.them
( )7.A.into B.on C.at D.of
( )8.A.make B.does C.eat D.has
( )9.A.before B.for C.until D.since
( )10.A.but B.or C.as D.so
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Everyschoolhasitsownrules.Howmany 11 arethereinyour
school?Atsomeschools,thestudentshavetowearuniformsonschool
days. 12 manystudentsdontliketowearuniforms.Theythink
uniformsaretheugliest(
ôR
) 13 intheworld.Buttheyarenot
alowed(
)towear 14 ownclothesatschool.Sosomestudents
drawpicturesofcartooncharacters(
©g
)orsomefamoussingerson
their 15 .Theythinkitsvery 16 thateveryonewearsthesame.
Itsveryunfair(
w¸¹R
)that 17 andstudentsaredressed
diferently.Butmostofthestudents 18 therules.Whatdoyouthink
19 it?Doyou 20 youruniform?
( )11.A.students B.rules C.clubs D.classrooms
( )12.A.Or B.For C.But D.Because
( )13.A.clothes B.shirts C.skirts D.trousers
( )14.A.their B.they C.our D.us
( )15.A.bags B.books C.uniforms D.desks
( )16.A.important B.boring C.interestingD.relaxing
( )17.A.worke