SQL Comments on Create Table on SQL Server 2008

I need to create some pretty big tables in SQL Server 2008, while I do have SQL Server Management Studio, I would like to comment the tables and the columns when I create the table. How do I do this?

Example of the query I am running:

CREATE TABLE cert_Certifications
(
  certificationID int PRIMARY KEY IDENTITY,
  profileID int,
  cprAdultExp datetime null
)

I've tried COMMENT'Expiration Date for the Adult CPR' and COMMENT='Expiration Date for the Adult CPR' after the data type, and SQL Server is giving me an error.