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完形填空Many objects that people use each day started with a sim

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完形填空
Many objects that people use each day started with a simple idea.These objects have often changed the way we __1__.Some help us to do a job more __2__.Others fill a need or solve a problem.
In 1858 H.L.Lipman had such an __3__.He took out a pencil,a piece of paper,__4__ an eraser.Then he began to write.Sometimes he need to __5__ a word.Each time he had to search under his books and papers to __6__ the eraser.“I wish my eraser would stay in one __7__!” he said.
Then Lipman had his simple idea.He __8__ a groove(凹槽)in one end of the pencil.He glued(粘牢)the eraser into the groove.Lipman had solved his problem.Later he thought that other people might like to have such a pencil.So he sold his __9__.Soon pencils with erasers were __10__.His design earned him 100,000 dollars.
( )1.A.study B.live C.sleep D.walk
( )2.A.easily B.correctly C.carefully D.normally
( )3.A.article B.aim C.idea D.action
( )4.A.so B.and C.but D.as
( )5.A.spell B.read C.write D.change
( )6.A.look B.see C.watch D.find
( )7.A.place B.desk C.book D.hand
( )8.A.market B.prepared C.cut D.invented
( )9.A.books B.pencil C.design D.eraser
( )10.A.wonderful B.expensive C.colorful D.common
1-5 BACBD
6-10 DACBD
只有正确答案,没有翻译哦!