my favorite sport is playing xxx还是is xxxxxx代表basketball这些东东例：前者是is playing basketball 后者是 is basketball
问题描述：
my favorite sport is playing xxx还是is xxx
xxx代表basketball这些东东
例：前者是is playing basketball 后者是 is basketball
答
My favorite is XXXX XXX是复数还是单数？ 单数 比如西瓜。苹果。 都是表种类 是单数
答
如果是选择题，是 playing basketball
但是口语里面只说 basketball 也没有错
答
my favorite sport is playing basketball 这个是后面加动词ing形式
my favorite sport is basketball 这个是直接加名词
这两个都行