摘要:----Where did you put the keys? ----Oh, I I put them on the chair because the phone rang as I in. A. remembered, come B. remembered, was coming C. remember, come D. remember, was coming B)完形填空 先通读下面的短文.掌握其大意.然后在每小题的A.B.C.D四个选项中选出最佳选项. Many objects that people use each day started with a simple idea.These objects have often changed the way we 34 .Some help us to do a job more 35 .Others fill a need or solve a problem. In 1858 H.L.Lipman had such an 36 .He took out a pencil, a piece of paper, 37 an eraser.Then he began to write.Sometimes he needed to 38 a word.Each time he had to search under his books and papers to 39 the eraser.“I wish my eraser would stay in one 40 ! he said. Then Lipman had his simple idea.He 41 a groove(凹槽) in one end of the pencil.He glued the eraser into the groove.Lipman had solved his problem.Later he thought that others might like to have such a pencil.So he sold his 42 .Some pencils with erasers were 43 .His design earned him $100,000.

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