As young adults, it is our ____________to help the disabled.

The customers are pleased with the________of the restaurant.

---You look sad today, what’s      ?---I have a       throat.

— Where are you going, Li Lei?                          — I’m going to the ______ to see a movie.

If you want to be healthier, you shouldn't do _____ in the classroom all the        time but do more _____ on the playground.