December is the _____ month of a year．

　　A．twelve　　B．twelveth　　C．twelvieth　　D．twelfth

The ________ month of a year is December．

1. A.
   two
2. B.
   second
3. C.
   twelve
4. D.
   twelfth

December is the ________ month of the year.

1. A.
   12
2. B.
   twelve
3. C.
   twelveth
4. D.
   twelfth