then, more than 2 billion apps have beendownloaded at prices ________ free to $900.

Yao Ming is a popular basketball player____ the Chinesepeople.

It’s_____belief that parents have to spend nearly 500, 000 yuan bringing up a child in Chinanowadays[ ]

The two sportsmen congratulated each other________ winning the match by shaking hands.[ ]

It’s not easy _________Mrs White to persuade（劝说）her husband to stop smoking. He never listens toothers.—Really It’s stubborn ____________ him.