______ for the boys to blow their noses at table!

问题描述:

______ for the boys to blow their noses at table!
A.what bad manners it is
B.how bad manners it is
这两个究竟有什么区别啊!

答案是A.
What 修饰名词或名词词组,而how修饰形容词或副词.bad manners 是一个词组,不能分开.