She is very nice, but because she has a（）way of speaking, she is slow in making friends

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

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

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

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

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

I could not persuade him to accept it,（）make him see the importance of it.

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

Our department（）courses in several foreign languages.

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