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17. Scuba diving looks ____________. I think I will try it. (EXCITE)

18. The first time I went rock climbing, I was really _______________. (SCARY)

19. It costs 10 dollars to rent the ____________ equipment. (SAFE)

20. Andy has a ____________ of stamps and postcards from different countries. (COLLECT)

21. Kate is having a birthday party next Sunday. She sent me an ____________ yesterday. (INVITE)

22. My brother is really into extreme sports like rock climbing or zorbing, but my mum thinks they’re too ____________. (DANGER)