Do you often play _________ soccer with your friends?—No, I don’t like sports. I often play ________ piano in my free time.

People, especially teens, think it great fun to surf on Internet.

All the donated money should be made full use _______the homeless people in Ya’an city of Sichuan province.

Shen Xue and Zhao Hongbo won the gold medal for China so we’re proud _____ them. [ ]

“You can’t judge a book by its cover,”.