choose the correct words or expressions to complete the sentences. 1. Classical music isn’t always very ___________ (popularity / popular) with young people. 2. Last night we ______________ (stay up late / stayed up late) and watched a film. 3. Jerry admitted to ___________ (feeling / feel) hurt by what I said. 4. I’m _______________ (looking forward / looking up) to summer vacation because I need a break! 5. The university is _______________ (teaming up with / teaming in with) a school in England for the research project. 6. Would you like to ___________ (participant / participate) in our summer camp?