Question

It's important ________ the piano well．

A. of him to play
B. for him to play
C. of him playing
D. for him playing

Answer 1

答案B
此题考查非谓语动词。句意为：对他来说，弹好钢琴很重要。句中的It是形式主语，真正的主语是后面的动词不定式短语to play the piano well。如果要说明动词不定式的动作是谁做的，可在不定式前加一个for引起的短语，但如果形容词是kind，nice，right，wrong，clever，polite等描述行为者的性格、品质的形容词，则应在不定式前加一个of引起的短语。It's very kind of you to help me. 你能帮我，真好。