This is a very special flower and it can _______ a strong sweet perfume at night.
| A．give in | B．give up | C．give out | D．give away |
The shoe was discovered on the Chilkoot Pass, the famous trail used by people ______ gold in Alaska.
| A．looking | B．finding |
| C．searching | D．seeking |
All his money had been ______,so he had to make a living by begging.
| A．used up | B．taken up |
| C．made up | D．picked up |
_________ the project as planned, we’ll have to work two more hours a day.
| A．Completing | B．Complete | C．Completed | D．To complete |
I feel greatly honored ____ into their society.
| A．to welcome | B．welcoming | C．to be welcomed | D．welcomed |
In his book,he explains both ______ it means to be a scientist and ______ science works.
| A．how; how | B．what; that |
| C．what; how | D．how; that |