. Duty is an act or a course of action that people you to take by social customs, law or religion.
| A．persuade | B．request | C．instruct | D．expect |
124. He had an________holiday in Hong Kong, for he got his pocket picked on the first day.
| A．pleasing | B．unfortunate | C．unfit | D．Unpleasant |
123. At present nanotechnology(纳米技术), a kind of tip science_________to the common people. Few people know him.
| A．unknowing | B．unknown | C．known | D．Untrue |
122. The children are very fat butbecause they appear ill-nutritious(营养不良)。
| A．unhealth | B．unhealthy | C．healthy | D．Health |
121. I was uncertain of my success. Which of the following can replace the underlined word?
| A．willing | B．not sure | C．certainly | D．not certainly |
120. Though he, sword wounds on his face, looks , Mike is a kind-hearted general.
| A．ugly | B．unusual | C．unfit | D．Fat |