Revision : Part 1 (1A/1B)

Try the exercises:
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-53781.php

Revision: Part 2 (1A/1B)

 

Try the exercises:

http://www.englishexercises.org/makeagame/viewgame.asp?id=5272

Revision : Part 3 (1A/1B)

Try the exercises:
http://www.englishexercises.org/makeagame/viewgame.asp?id=723

Revision: Part 4 (1A/1B)

 

Try the exercises: 

  http://www.englishexercises.org/makeagame/viewgame.asp?id=3051