The companies are working together to create they hope will be the best means of transport in the 21st century.
| A．which | B．that | C．what | D．Who |
We are working under the command of the manager that no _______ be spared to make the party a success.
| A．trouble | B．expedition | C．expense | D．experience |
For sustainable development, the government has decided to give __________ to those energy conserving and environmental-- friendly business in many aspects.
| A．profit | B．interest | C．advantage | D．preference |
I counted the people the activity, and there were 286 of them.
| A．were taking part in | B．taking part in |
| C．taken part in | D．took part in |
They had kept working for several weeks everything was in order.
| A．before | B．after | C．since | D．unless |
The headmaster who had the grand ceremony waved to the crowds with a smile .
| A．included | B．joined | C．introduced | D．attended |