The storm sweeping over this area now is sure to cause _____ of vegetables in the coming days.
| A．rarity | B．scarcity | C．invalidity | D．variety |
When winter comes, it _________ become very cold in Shenyang.
| A．is going to | B．will | C．has | D．is about to |
After he was elected _______ Chairman of _______ Workers’ Union, he began to concentrate on helping ______ unemployed.
| A．/; the; the | B．/; the; / | C．the; /; the | D．/; /; the |
It is a good plan in theory, but it _____ to be seen whether it works in practice.
| A．keeps | B．stays | C．stands | D．remains |
This piece of furniture is really inexpensive with a price of _____ forty dollars.
| A．less than | B．more than | C．other than | D．rather than |
—Did you visit the museum today?
—No. We _____ it, but we spent too much time shopping.
| A．could have visited | B．must have visited | C．could visit | D．must visit |