It’s suggested that vehicle taxes should be set ____ on how dirty the car’s exhaust is, with no tax ___________ on the most environmentally friendly one.
124. He had an________holiday in Hong Kong, for he got his pocket picked on the first day.
123. At present nanotechnology(纳米技术), a kind of tip science_________to the common people. Few people know him.
122. The children are very fat but because they appear ill-nutritious(营养不良)。
121. I was uncertain of my success. Which of the following can replace the underlined word?
120. Though he, sword wounds on his face, looks , Mike is a kind-hearted general.