—How do you think he managed to improve his English in such a short time?
—______ four hours on it every day．
| A．Because of spending | B．To spend |
| C．By spending | D．Spending |
The Shanghai Expo has attracted more than 73 million tourists, ________ it the most successful in history.
A. making B. makes C. made D to make
—Will you be able to finish the report before Friday?
—I can’t ________ anything, but I’ll try my best.
| A．guarantee | B．transform | C．prepare | D．say |
Sophie dreams of walking in __________ outer space like __________ astronaut one day.
| A．/; the | B．/; an | C．an; an | D．a; an |
— Some more wine?
— Thank you. ____________. I have to drive home.
| A．With pleasure | B．That would be nice | C．I’d rather not | D．Just what I need |
The following years are _______to see a rise in production.
| A．likely | B．possible | C．perhaps | D．probable |