介词+sb+doing还是do答:it is +adj+for sb to do.名词+介词+doing 有些名词,其后通常接“介词+-ing分词”作后置修饰语,而一般不接to do,例如:aptitude, delay, difficulty, excuse, experience, interest, genius, habit, hope, idea, method, movie, object, passion, plan, possibility, skill和success。The ...