real pleasure pioneer invent daily

Paul： Hey， Jenny， the subject for my school project is "Small inventions that changed the world"． Can you help me think of an invention？

Jenny： With（1）　　! Let me think …hmm …I know! The zipper!

Paul： The zipper？ Is it（2）　　such a great invention？

Jenny： Think about how often it's used in our（3）　　lives． You can see zippers on dresses， trousers， shoes， bags …almost everywhere! I saw a website last week． The（4）　　of different inventions were listed there．For example，it mentioned that the zipper was（5）　　by Whitcomb Judson in 1893． But at that time， it wasn't used widely．

Paul： So when did it become popular？

Jenny： Around 1917．