How ___ the girls are playing!A:Happy B:happier C:happiness D:happily

问题描述:

How ___ the girls are playing!A:Happy B:happier C:happiness D:happily
为什么!

正确答案为:
D
修饰动词play,所以要用副词happily
翻译为:
女孩们玩得多高兴呀.