He is the only one of the students who________a winner for three years.
| A．is | B．are | C．have been | D． has been |
7. This year is very special, _______Chinese New Year' s Day falls on Valentine' s Day.
| A．once | B．while | C．if | D．For |
6. How can you call it home? It' s__________a house.
| A．hardly | B．rarely | C．badly | D．Occasionally |
5. When _______about one of the biggest concerns today, many people mention the sharp rise in prices.
| A．asking | B．to ask | C．having asked | D．Asked |
4. People begin to know that most environmental problems exist because necessary measures for preventing them _______taken in the past.
| A．are not | B．were not | C．hadn't been | D．wouldn't be |
3. To write a novel is not as easy as you imagine. It will take a lot of time and_____.
| A．power | B．force | C．energy | D．Strength |