Their products enjoy 30 percent ________ of the market in this country because both the quality and their service are fine. 

There are three ____ doing research work in the company.

Giving up my job to go back to full-time education was a big __________, but now I know it was the best decision I ever made. 

In human, there is a possibility of ____ such as fever and headaches if there is exposure to the virus. 

We are good friends though he is ten years ________ to me.