I prefer at home to outside.A. staying; playingB. to stay; playC. staying; play 　D. to s

问题补充：

I prefer at home to outside.

A. staying; playing

B. to stay; play

C. staying; play

D. to stay; playing

答案：

(答案→)A. staying; playing

B. to stay; play

C. staying; play

D. to stay; playing

解析： prefer (doing) sth. to (doing) sth.喜欢不喜欢，该句中的to是介词，to的前后必须一致。