The ability ________ an idea is as important as the idea itself.
| A．expressing | B．expressed |
| C．to express | D．to be expressed |
If you live in the country or have ever visited there, ____ are that you have heard birds singing to welcome the new day.
| A．situations | B．facts | C．dances | D．possibilities |
—Will $200 ____ the cost of the damage?
—I’m afraid not. I need at least $100 more.
| A．do | B．include | C．cover | D．afford |
—Would you mind giving your advice on how to improve our business management?
—if you make ____ most of the equipment, there will be ____ rise in production.
| A．不填；不填 | B．the；a | C．不填；a | D．the；不填 |
If you win the competition, you will be given ____ to Europe for two.
| A．a free 7-day trip | B．a free trip for 7-day |
| C．a 7-day free trip | D．a trip for 7-day free |
—Can I pay the bill by check?
—Sorry, sir. But it is the management rule of our hotel that payment ____ be made in cash.
| A．shall | B．need | C．will | D．can |