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

Jenny: With ____! Let me think ... hmm ... I know! The zipper!

Paul: The zipper? Is it ____ such a great invention?

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

Paul: So when did it become popular?

Jenny: Around 1917.

  For me， ____ ____  ____  ____ it's a challenge，but ____

____ ____ ____it's a chance to study．

“一处水源供全球”是国际矿泉水行业通用的模式，该处水源必须是世界三大黄金水源(即阿尔卑斯山、大高加索山和长白山)之一。读“中国某品牌矿泉水出口全球示意图”，回答有关问题。

强强说：“我的东面是东半球，西面是西半球，南面是南半球，北面是北半球”．你知他站在哪里吗？（　　）