Why not try your luck downtown, Bob? That's __________ the best jobs are.
| A．where | B．what |
| C．when | D．why |
Actually you can make learning English a process, ________ you can not only learn much knowledge but also interesting cultures.
| A．which | B．where | C．when | D．what |
The Winter Olympic Games ________ in Sochi, Russia in February, 2014 was also a great party for athletes from different countries.
| A．was held | B．being held | C．to be held | D．held |
—Sorry, Madam. Any problem?
— Yes. The fish is served undercooked and with nothing .
| A．to add | B．adding | C．added | D．adds |
There will be no going back our decision is made.
| A．until | B．unless | C．once | D．before |
The woods are remains of a huge forest once covered the whole area.
| A．where | B．which | C．whose | D．when |