-My son is studying for an important exam. Could you please       the music a little?      -I'm very sorry.

—I have bought a new watch .—Where and when        you         it ?

 Lucy often goes to school on foot, doesn’t she?

My father is used to _______ in the country. He doesn’t want to move to the city.

---What’s wrong with you, Eric? You look tired.---I ________ to prepare for the final exam last night.