They were pretty poor but most of their friends were even .
| A．richer | B．badly off | C．worse off | D．well off |
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 |
The great scientist became world-known in the early 1970s,______ he and another scientist made new discoveries about black holes.
| A．which | B．where | C．when | D．then |