Billy: I’ve been fixing the computer for over three hours, but it still doesn’t work. Nana: Why don’t you take a rest and try 　　　?  Maybe you’ll do better then.

My parents _________ at home on weekends.

--_____is the post office ?--- Go straight and turn right.

Some people like wearing fashionable clothes; ______, some birds like bright feathers.

---______ do you go shopping, Mary? --- Twice a week.