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

Since we can't hear you at the back of the hall, you'll have to（）your voice.

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

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

（）students often find it difficult to live in China at first.

I just managed to（）a quick breath before I was pulled under the water by the passing boats.

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

I want you to succeed without（）and firmly believe that you will succeed if you try hard enough.

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

I don't know who on（）stole the diamond last night.