23.---Do you feel like _____ there or shall we take a bus?
---I’d like to walk,but since there isn’t much time left,I’d rather we_____ a taxi.
| A．walking; hire | B．to walk; hire | C．to walk; hired | D．walking; hired |
As there is less and less coal and oil, scientists are exploring new ways of making use of ______ energy, such as sunlight, wind and water for power and fuel.
| A．primary | B．alternative | C．instant | D．unique |
Mary kept weighing herself to see how much _______ she was getting.
| A．heavier | B．heavy | C．the heavier | D．the heaviest |
At times ,worrying is a normal, ________response to a difficult event or situation—a loved one being injured in an accident , for example.
| A．effective | B．individual | C．inevitable | D．unfavorable |
_______ has limited technical knowledge, the old worker has a lot of experience.
| A．Since | B．Unless | C．As | D．Although |
The old lady’s hand shook frequently. She explained to her doctor____this shaking had begun half a year before, and____, only because of this, she had been forced to give up her job.
| A．when; how | B．how; when | C．how; how | D．why; why |