you he is able to ski but I am.A. Both andB. Not only but alsoC. Either orD. Neither

问题补充：

you he is able to ski, but I am.

A. Both, and

B. Not only, but also

C. Either, or

D. Neither, nor

答案：

A. Both, and

B. Not only, but also

C. Either, or

(答案→)D. Neither, nor

解析：考查主谓一致。句意“你和他都不会滑冰，但我会。”Both...and连接两个主语时，谓语用复数；Not only, but also和either...or及Neither, nor连接主语时，谓语用“就近原则”。谓语是is可知，排除A；but表示转折，根据句意可知，前面的两个人都不会，故用Neither, nor。故选D。