Traveling ______a speed of 160 km/h，we have covered a distance of 120 kilometers ________less than 50 minutes.
| A．with；in |
| B．at；in |
| C．with；for |
| D．at；for |
By the 2030s most people can to live at least 80, which is a big leap for mankind.
| A．expect | B．desire | C．want | D．demand |
Without enough evidence, the jury couldn’t find him of the crime ,so he was set free.
| A．skeptical | B．ashamed | C．guilty | D．innocent |
- Hi, Maria! I got the first place in the exam.
-! Everyone knows you cheated.
| A．Congratulations | B．Come on | C．Good luck | D．Cheer up |
Help others whenever you can you’ll earn respect from others without difficulty.
| A．and | B．or | C．unless | D．but |
Expo 2010 Shanghai China offered wonderful opportunity for cross culture dialogues.
| A．a;/ | B．a ,the | C．/,the | D．the ,/ |