YaoMing,abasketballgiant,

来源：语文精选馆 1.35W

Yao Ming, a basketball giant , ___________ water polo when he was young.

A. is playing B. used to play C. is used to playing D. was playing

【解析】句意：姚明，一个篮球巨人，小时候经常打水球。is playing正在玩，现在进行时；used to play过去常常玩；is used to playing习惯于玩……；was playing过去进行时。根据句意when he was young可知，这里说的是过去的事情，故应选B。