In the market，vegetables are sold by ________ kilogram，I mean，by ________ weight.
| A．the；/ | B．/；/ | C．the；the | D．/；the |
If you hurry up, I think it quite ______that you will catch the flight to Hong Kong. There are 40 minutes left.
| A．probably | B．possibly | C．likely | D．certainly |
All______ to the earthquake-hit areas were cut off, which made the rescue much more difficult.
| A．means | B．approaches |
| C．plans | D．projects |
David woke up one morning to find both water and electricity _______ because he hadn't paid the bills.
| A．cut off | B．cut down | C．cut in | D．cut out |
Yuan Longping is such a(n) ______ scientist that he has been praised and rewarded many times.
| A．frightening | B．amazing |
| C．disturbing | D．outstanding |
In a way，________ global warming is a challenge for man，so we must overcome it to build ________ fine world.
| A．the；/ | B．a；the | C．/；a | D．a；/ |