While the book on the top shelf, you need to be very careful. [ ] A.to reachB.re
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![While the book on the top shelf, you need to be very careful. [ ] A.to reachB.re](/pic/43_949311.jpg)
While ________ the book on the top shelf, you need to be very careful.
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A.to reachB.reachingC.reachD.reached试题答案
答案:B
![While the book on the top shelf, you need to be very careful. [ ] A.to reachB.re](/pic/43_949311.jpg)
While ________ the book on the top shelf, you need to be very careful.
[]
A.to reachB.reachingC.reachD.reached答案:B