“The impact will only grow Iran’s leaders decide to change course and meet their international obligations,” US Secretary of State Clinton warned．
| A．in case that | B．provided that | C．unless | D．until |
None of the students in the class likes the professor， who is used to being _____ of everything they do．
| A．optimistic | B．criticaL |
| C．interested | D．emotional |
Africa is a very _____ continent， with each country， or even each part of a country having its own unique culture．
| A．diverse | B．abstract | C．remote | D．vacant |
The shooting death of Michael Brown， an 18-year-old black man， who was fatally shot by a police officer， has _____ a media firestorm across the US since Aug 9．
| A．set up | B．set out | C．set aside | D．set off |
If you completely ____ foods and drinks that you love， you'll only set yourself up to go on a large amount of those items later．
| A．take out | B．cut out | C．give out | D．put out |
The exhibition _____ such endangered animals as the giant panda and the Siberian tiger and describes the work being done to protect them．
| A．exploits | B．features |
| C．demonstrates | D．inspects |