She looked at the beautiful scarf and wondered           .

---         are the Winter Olympic Games held？
---Every four years.

---You should            your teacher’s advice if you want to improve your science.
---That sounds great.

--- Is he still raising money for charity?
---Yes. He never _______hope of helping poor children.

---Why are you still here? It's so late.
---Because I            my work. Don't worry. It's almost done.