be important in doing sth
用括号中单词适当形式填空求解~My father is good at ___ (play) ta...答:e good at doing sth.或be well in doing sth.都是表示“擅长做某事的意思”这里用playing,意思是我父亲擅长打乒乓球.后一个问题:若形容词是描述不定式行为者即人的性格、品质的,如kind,good,nice,right,wrong,clever,careless,polite,foolish等,用of *** ..It’s very kind of you to help ...