The dangerous virus ____ in the next few weeks in the laboratory can cause fatal diseases.
| A．studying | B．studied | C．to study | D．to be studied |
If you are not satisfied with our work, you can complain to the manager who is _________ customer service.
| A．in honor of | B．in case of | C．in charge of | D．in need of |
By the time I reach the age of sixty, I hope to be healthy enough to travel ___________ .
| A．gradually | B．frequently | C．entirely | D．equally |
More ________ information is needed to help us work out the real situation.
| A．generous | B．reliable | C．grateful | D．fluent |
What upset us was that our flight was delayed because of the ________ storm.
| A．fierce | B．legal | C．intelligent | D．secure |
The wide popularity of the Korean music Gangnam Style has _________ heated discussions about people’s tastes nowadays.
| A．set about | B．set aside | C．set off | D．set down |