—Would you be able to go to the party ?
— I have to pick up my friend at the airport．
| A．I’d love to． | B．I’m afraid not． |
| C．Absolutely! | D．Why not? |
－You couldn’t have chosen a better way to solve the issue, I think.
－________________.
| A．Well, nothing much | B．Oh, don’t complain about it |
| C．Sorry, but I’ll find a better one | D．Thanks a lot. |
The scientists are able to ____________ accurately when the spaceship will reach the moon.
| A．accumulate | B．calculate | C．appoint | D．estimate |
－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 |
The driver got out of the car_______it caught fire.
| A．directly | B．that | C．unless | D．until |
__________twice a year, whether it is a car or bus or a truck, is the rule that every driver must obey in this city.
| A．Examining | B．Examined | C．Being examined | D．Having been examined |