be，pretty后面跟什么

1、Driving on icy roads can be pretty hairy.在结冰的道路上开车很惊险。

2、You would have to be pretty hard-hearted not to feel something for him.只有铁石心肠的人才会对他无动于衷。

3、Stephen is going to be pretty upset when he finds out how you tricked him.如果斯蒂芬发现你怎样欺骗了他，他会非常气愤。