—Where are Tom and Mary?
-- Tom Mary is busy with their homework. You’d better play with.
A. Both, and
B. Neither, nor
C. Either, or
D. Not only, but also
网友回答
A. Both, and
B. Neither, nor
C. Either, or
(答案→)D. Not only, but also
解析：本题考查连词的使用。本题的含义为汤姆和玛丽去哪里了？汤姆和玛丽忙于他们的功课。根据汉语意思可知 not only....but also表示不仅....而且的含义，谓语动词采取就近原则，故用is；而both……and表示两者都的含义，表示并列，后谓语动词使用are；neither……nor表示既不……也不的含义；either……or表示要么……要么的含义，后三者与本题的含义不符，故本题选D。