咱月考的完形,错了3道,而我觉得自已选得答案是正确的,这就是那几个题：Manyobjectsthatpeopleuseeachdaystartedwithasimpleidea,theseobjectshaveoftenchangedthewaywelive.somehelpustodoajobmoreeasily.o

　　咱月考的完形,错了3道,而我觉得自已选得答案是正确的,这就是那几个题：

　　Manyobjectsthatpeopleuseeachdaystartedwithasimpleidea,theseobjectshaveoftenchangedthewaywelive.somehelpustodoajobmoreeasily.othersfillaneedorsolveaproblem.

　　in1858amanhadsuchan{a,articleb.idea}我觉得选文章也可以｝hetookoutapencil,aeraser,thenhebegantowrite,hewishedhiseraserwouldstayinoneplace.

　　thenhehadasimpleidea.he{a,cutb.prepare我选的是b,准备不行吗?}agrooveinoneendofthepencil