Here are the best options to fill in the blanks:

34. **C. the** (referring to the specific world)
35. **A. a** (indicating one of many positions available)
36. **D. friendly** (an adjective to describe being helpful)

So the completed sentences would be:

34. Do you speak English? Are you interested in museums? Would you like a holiday job where you could meet people from all over **the** world? We are looking **a** someone to work in the City Museum shop during the holidays. No experience is necessary, but you must be **friendly** and have some interest in art. Contact Mrs. Donovan at the City Museum.