He prefers indoors out this afternoon.
A. to stay;to go
B. staying; to going
C. staying;to go
D. to stay; going
网友回答
A. to stay;to go
(答案→)B. staying; to going
C. staying;to go
D. to stay; going
解析：句意：今天下午他更喜欢呆在室内而不是出去。Prefer doing to doing“与…比起来更喜欢”，所以选B。