Evidence obtained from observation and experiment is often used to _____ a scientific theory.
| A．confirm | B．confine | C．conform | D．conceive |
I ________ to help you with your homework, but I couldn’t spare any time. I ________ a composition last night and I’ll finish it today.
| A．wanted; wrote | B．had wanted; was writing |
| C．have wanted; wrote | D．wanted; have been writing |
Without facts, we can’t form a correct opinion, for we need to have actual knowledge _______ our thinking.
| A．which to be based on | B．which to base on |
| C．on which to base | D．which to base |
Recently we held a discussion about what we shall use for power when all the oil in the world has _________?
| A．run out of | B．used up | C．given out | D．put out |
--- What do you think of the jacket and the hat I wear today?
--- I don’t think this jacket _________ you and that your hat _______ this jacket perfectly.
| A．suits; fits | B．meets; fits | C．matches; suits | D．fits; matches |
Though my grandfather is in his eighties, he is still as _________ as a young man and hates sitting around doing nothing all day.
| A．enthusiastic | B．talkative | C．energetic | D．sensitive |