18．An explosion in a coal mine in Heilongjiang on Nov. 21, 2009______at least 106 workers dead.
| A．promoted | B．kept | C．left | D．Created |
With more and more farmers moving to cities, an inadequate labor force isbecoming a major factor affecting the country's grain output.
| A．automatically | B．occasionally | C．absolutely | D．gradually |
The monthly sales of Mo Yan's works 199 times compared with those before he won the Nobel Prize for.Literature.
| A．accelerated | B．stretched | C．multiplied | D．switched |
Though the "No smoking" signs have existed for long in public places, heavy smokers oftenthem and light up cigarettes.
| A．abandon | B．postpone | C．decline | D．ignore |
The Jiangsu TV station is very popular with many people in China, as it deals with sub-jects such as music, entertainment and fashion.
| A．precise | B．diverse | C．casual | D．regular |
The recent study has shown that people's attitudes towards protecting the environment are notwith their behavior in daily life.
| A．consistent | B．reliable | C．satisfied | D．enthusiastic |