REVISION OF IRREGULAR VERBS
Irregular verbs database: http://www.englishpage.com/irregularverbs/irregularverbs.html
Refer to the database if you have problems doing the exercises:
Fill in the correct word
Exercise 13. (Intermediate)
Exercise 14. (High Intermediate)
Exercise 15. (Advanced)
Identify the verb form
Irregular Verb Wheel Game (some say it is fun)