1．How do you analyze the present economic s____________？
2．A balloon e____________as it is filled with air.
3．The manager is greatly d____________ with the young man.
4．This medicine is highly e____________against cancer.
5．Smoking is p____________in all areas of the office building.
6．The____________(环境)problems must be paid much attention to.
7．We try our best to increase ____________(产量)by using better methods and tools.
8．I have enjoyed my visit very much，and would like to thank all(the people)____________(相关的)．
