完形填空。 The word sharp can be 1 to describe many different things in your home, classroom, and place of work. In this passage, the writer 2 sharp pencils, meaning pencils with a very fine point. The writer does not like dull pencils. We can also use the word sharp to describe the blades(刀刃) of knives. Knives also have points. We can use the word sharp to describe a 3 kind of point, 4 as the sharp points of kitchen and steak knives. Scissors have blades, too, and we can describe these blades as sharp or dull. Furthermore, the points of scissors are 5 sharp or rounded depending on the kind of scissors. Some tools , such as saws, scrapers, and garden tools, also have blades. We can use the words sharp and dull to describe the blades of these tools 6 . Sharp knives, scissors, and tools are 7 to use. They cut things easily and quickly, without effort. The word sharp can be used to describe the edges of furniture and 8 some containers. For example, the edge of a table can be 9 . In addition, we can describe the edge of 10 open can as sharp. The top of a can is sometimes sharp enough to cut your hand. A piece of 11 from a broken jar or bottle is ordinarily very sharp. Finally, we sometimes use the word sharp to describe people. A person who appears sharp is very well 12 . A person who is sharp, on the other hand, is intelligent, smart, and 13 learn and understand. To summarize, the word sharp can describe many kinds of 14 that have blades, points, and edges. When we use the word 'sharp' to describe people, it can mean nice-looking, well-dressed, or intelligent. It is an expressive word 15 it can be used in many different ways. (     )1. A. taken (     )2. A. talks about (     )3. A. certain (     )4. A. so (     )5. A. neither (     )6. A. too (     )7. A. hard (     )8. A. for (     )9. A. sharp (     )10. A. a (     )11. A. suggestion (     )12. A. prepared (     )13. A. difficult to (     )14. A. interesting things (     )15. A. even though B. watched B. takes up B. some B. as B. either B. even B. exciting B. on B. smooth B. an B. bread B. served B. is to B. bowls B. because C. used C. takes away C. just C. and C. each C. either C. clear C. of C. dull C. the C. glass C. dressed C. to C. objects C. if only D. read D. talked with D. any D. such D. also D. ever D. easy D. beyond D. rough D. / D. news D. wore D. quick to D. knives D. since