20: There is always a(n) () smile on his face. A: sickly B: sick C: diseased D: ill ...

10: She has been ill for a month, which set her () in her studies. A: back B: off C: down D: in ...

1: We need a volunteer to () the relief supplies to the victims. A: distribute B: allocate C: provide D: supply ...

4: Eight billion people will be living in cities by the year 2025. A: 错误 B: 正确 ...

3: Workaholism is not always dangerous because (). A: for most workaholics, work and entertainment are the same thing B: The jobs provide workaholics with a challenge; this keeps them busy and creative C: workaholics have greater energy ...

7: It was () he arrived home that he realized that he had left his keys in the office. A: until B: lestl C: less D: not until ...

4. When you ignore your buddies’ good counsel, they can’t understand you and will have a quarrel with you. A. 错误 B. 正确 ...

1. The negative side of city life is(). A. population growth is causing unbelievable overcrowding B. there isn’t enough water, transportation, or housing C. the traffic is very busy and noisy D. sickness and crime is on the rise ...

6. If he catches you () his letter, he will be furious. A. to read B. read C. reading D. to be reading ...

6. The advantage of the educational system in North America is that students learn to think for themselves. A. 错误 B. 正确 ...