Sure! Here are the matched words to their meanings:

1. puzzle - **i**: a game that challenges you to think a lot
2. trick - **g**: describes a way of making something impossible happen
3. imagination - **h**: the ability to make pictures of something in your mind
4. hide - **a**: put something in a place where nobody can find it
5. solve - **f**: find the answer to something by thinking about it
6. create - **j**: form an idea or picture of something in your mind
7. mystery - **e**: something strange that cannot be explained
8. imagine - **d**: make something happen or exist
9. magic (adjective) - **c**: a clever activity that makes people believe something false
10. secret (adjective) - **b**: describes something that people cannot know about

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Now for the sentences in exercise 2, I will fill in the correct words:

1. In our lesson, we had to perform a short play, which we performed to the class.
2. At the **trick** show I went to, a man made a rabbit disappear!
3. When you read books, you have to use your **imagination**.
4. My aunt does a **puzzle** every day.
5. You mustn't tell anyone this **secret** information.
6. Can I show you my new card **?**
7. The police are still trying to **solve** the crime.
8. I always hide my diary because I don't want anyone to read it.
9. Can you **imagine** what your parents looked like when they were your age?
10. It’s a complete **mystery** who painted the picture on the wall.

Feel free to ask if you need further assistance!