Many people tried to leave the country，________there was much violence and a serious shortage of food supply.
| A．where | B．which | C．that | D．what |
We have strong ________ for believing that the newly-invented material is not only popular but also a monument to the eco-friendly lifestyle.
| A．grounds | B．reasons | C．causes | D．purposes |
A firm from New Zealand has revealed a set of robotic legs which they claim will soon allow ________ wheelchair-bound people to walk again.
| A．extremely | B．previously | C．actually | D．eventually |
Although the situation was tough during the economic crisis now things are beginning to ________.
| A．look up | B．keep up | C．set up | D．build up |
Michelle Obama wears clothes that anyone can buy in a mall and ________ she may have a larger effect on consumers than ordinary models.
| A．furthermore | B．otherwise | C．nevertheless | D．therefore |
Many people may be surprised by the number of chemicals that they are exposed to through everyday household products.
| A．devoted | B．addicted | C．exposed | D．applied |