1¡¢January is _______ month in Beijing.

       A¡¢cold¡¡¡¡¡¡B¡¢cold er¡¡¡¡¡¡C¡¢the coldest¡¡¡¡¡¡D¡¢coldest

 2¡¢Which box is         ,the first,the second or the third.

      A. more expensive             B. expensive

       C. the mostexpensive           D. most expensive

3¡¢Now the air in our city is _______than it was before.

         A¡¢much better¡¡B¡¢more worst ¡¡¡¡C¡¢more better   D¡¢much worst