At the seventh International Ballet Competitions , Fernando Bujones won the first gold medal ever to an American male dancer .
| A．awarded | B．to be award | C．being awarded | D．should be awarding |
It was a matter of ________ would take the position.
| A．who | B．whoever | C．whom | D．whomever |
People try to avoid public transportation delays by using their own cars, and this ____ creates further problems.
| A．in turn | B．in all | C．take turns | D．by turns |
After the new technique was introduced, the factory produced_____ cars in 2008 as the year before.
| A．as twice many | B．as many twice | C．twice as many | D．twice many as |
Great changes ______ in China in the past 20 years.
| A．took place | B．have taken place | C．were taken place | D．have been taken place |
The question is ______ it is worth doing.
| A．if | B．whether | C．which | D．what |