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, you should ______ the test paper first to make sure you haven’t missed anything out. A. look up B. look after C. look for D. look through C: Promise! D: What is it called? E: Who was it invented by? A: Hello, Daming. I have something interesting to show you. Come and have a look. B: Wow. A: It’s called “safety lock for door and window”. B: A: It’s used for preventing c hildren from falling down the windows of tall buildings. B: A: It was invented by two pupils from Primary School in Taijiang, Fujian Province. B: A: No, it’s cheap. About 28 yuan each. B: I want to show it to my parents. May I borrow it? A: Here it is. But bring it back tomorrow. B: