Liu Wei has no hands he can play the piano very beautifully.A. IfB. UnlessC. BecauseD. Al

问题补充：

Liu Wei has no hands, he can play the piano very beautifully.

A. If

B. Unless

C. Because

D. Although

答案：

A. If

B. Unless

C. Because

(答案→)D. Although

解析：考查连词的用法。If 是否，付过；Unless除非；Because因为；Although虽然，尽管。句意：“尽管刘伟没有手，但是他能弹钢琴弹得很优美”。由句意可知选D。