Readers are required to _________ the rules of the library and mind their manners.

Despite the rising costs of many products, bus fares in the city of Zhuzhou ______ unchanged.

China will continue to curb inflation(通货膨胀) and the economy still has great _______ for rapid growth in the near future.

This computer will certainly ________ all your expectations if you buy it, sir.

—How much is the T-shirt  ___________?—65 dollars．