Don't think it is quite ______（荒唐） of you to get married to a man 20 years older than you.
You have to show me something to prove your ______（身份）．
He is so stubborn a person and hard to p______.
There are plenty of______（娱乐活动）in big cities like Beijing and Shanghai.
He was good at______（算术） when he was very young.