Americans eat _____vegetables per person today as they did in 1910.
| A．more than twice as many |
| B．more than twice |
| C．twice as many as |
| D．as twice as much |
—Mr．Wang was caught in a snowstorm yesterday．
—I have known that, and ______ his new car was completely destroyed．
| A．hopefully | B．fortunately | C．thankfully | D．unfortunately |
This is the first time that I _____ the summer palace．
| A．had visited | B．have visited |
| C．visit | D．visited |
This is _______ story I’ve told you about．Isn’t it _______ interesting one?
| A．the; the | B．a; an | C．the; an | D．an; the |
Food prices are climbing around the world because farmers can't ____ demand for grain．
| A．catch up with | B．keep up with |
| C．grow out of | D．put up with |
Most of the professors _____ to our school were from South Africa．
| A．invited | B．to be invited | C．being invited | D．had been invited |