________onrealiceisveryexciting.A.

________ on real ice is very exciting.A.SkateB.SkatesC.SkatedD.Skating

参考答案：
D解析解析：本题考查动名词做主语。动词不可做主语，若需做主语时，需用不定式或动名词形式。故本题正确