The _________ look on his face suggested that what the monitor said was ___________.
| A．puzzling; puzzled | B．puzzled; puzzled | C．puzzled; puzzling | D．puzzling; puzzling |
Several times he almost brought himself to the point of speaking to them but his courage ________ him.
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 |