The aircraft vanished without（）

Our department（）courses in several foreign languages.

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

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.

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

People appreciate（）with him because he has a good sense of humor.

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

I expected a bigger payment, but I suppose you have to be（）for small mercies.

After she became a lawyer, she decided to （）criminal law.