An explosion is a sudden increase in amount（）

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

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

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

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

We forgave her anger because we knew that her father's illness had put her under great （）

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

His company promised to pay for his health （）in addition to other benefits.

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（）