hard-working(工作努力的);though (不过);serious (严肃的). 上述三个单词有没有比较级和*

问题描述:

hard-working(工作努力的);though (不过);serious (严肃的). 上述三个单词有没有比较级和*
hard-working(工作努力的);though (不过);serious (严肃的).
上述三个单词有没有比较级和*?

hard-working 比较级more hard-working *most hard-working
though没有
serious 比较级more serious *most serious