The number of smokers in the countryside is usually greater than _______ in cities.

Most of us see a doctor ______ when we get a cold or something.This won't cost us a lot.

May I use your bike? I'm going to see my uncle who _______ this city.

It is playing computer games _______ the boy spends most of his spare time.

---What's he size of the smaller one?

---It's _______.

---Why isn't he in the hospital with his injured mother?

---No one ______ him of the accident.

---When will you be back?

---________.We'll meet at the end of the month.

Let's ready to foot it ________there're neither buses nor taxies.

The ______ on her face told me that she was in a blue mood.

I kept on _______to her until the train disappeared completely in the darkness.