I’m expecting a pet dog for long，but mom has no time to buy _________ for me．

 When you get on a bus, it’s polite to wait for ________ turn. 

He found         very interesting to ride a horse on the farm.

—Could you tell me _______ it take to go from here to Harbin by car?—About fifty minutes.

She has written a lot of books, but_______ of them is good .