1. The volunteers generally stayed longer out of choice as the work was important and exciting. A. 错误 B. 正确 ...

6. Ventilation (). A. is a system for moving fresh air B. can cut indoor pollution to a safe level C. can cause some diseases D. is better done through air-conditioning ...

2. What does the author do as a supervisor? A. She managed 800 journalists’ desks and the telephones B. She took care of the banks of televisions. C. She just gave out orders. D. She was in charge of other volunteers, many of whom wer...

14. She is always () to helping the needy. A. ready B. willing C. committed D. like ...

6. Marge’s bedroom was in a (), with books and paper covering every possible surface. A. litter B. mess C. rubbish D. disorder ...

18: The small lake was only four miles (). A: wide B: large C: cross D: across ...

34: Organic food is common in mountainous regions. A: 错误 B: 正确 ...

22: People requesting personal information may (). A: send mails of advertisements B: begin illegal or indecent relationships C: harm a person's or family's well-being D: call the police ...

6: What are the situations with women during World War II? A: Millions of women had to take care of their homes and their children alone. B: Women had to go to work long hours at hard jobs outside the home. C: They demonstrated against t...

10: Microcomputers () with the invention of microchips. A: appeared B: turned up C: came into being D: were realized ...