用所给词的适当形式填空,每空一词。
My brother can ____ (swim). He wants to join the ____ (swim) club.
答案
swim,swimming

情态动词后接动词原形,所以第一空填swim。第二空动词不能修饰名词,但是swim变为非谓语动词形式swimming,此时为动名词,可以修饰名词。

略
