In China,it is quite (nature)（） for people to go back home for the Spring Festival.

Mr. Edward was not in, so his brother acted as （）at the party.

An explosion is a sudden increase in amount（）

Nobody knows how long and how seriously the shakiness（不穩(wěn)定） of big businesses will （） down the economy.

I was（）than angry when I saw how they'd ruined the landscape.

He will behave(crazy)（）if he drinks too much.

He（）for military service against the wishes of his parents.

Some say yes and others say no; I don't know （）to follow.

The survivors（）to a floating tree in hopes of rescue.

She couldn't（）laughing at him in those clothes.