【关于enjoy的单选---Whatsportdoyoulike?---Ienjoyed_____.ButIdon'tlike_____now.A.toswim;toswimB.swimming;toswimC.swimming;swimmingD.toswim;swimming.(注:这道题我选的是C,结果错了,在给出正确答案的同时,帮我解释】

　　关于enjoy的单选

　　---Whatsportdoyoulike?

　　---Ienjoyed_____.ButIdon'tlike_____now.

　　A.toswim;toswimB.swimming;toswim

　　C.swimming;swimmingD.toswim;swimming.

　　(注:这道题我选的是C,结果错了,在给出正确答案的同时,帮我解释一下C项为什么不对.)