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

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

I tried very hard to persuade him to join our group but I met with a flat（）

The price they offered for my old car was so low that I（）it down.

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

Inquiries（）the condition of the patients may be made personally or by telephone.

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

Many students found the book （）;it provided them with a large amount of information on the subject.

The aircraft vanished without（）

Shall we request the chairman（）our suggestion again?