Click on the links and do the exercises:
Exercise 1:
http://www.englishmaven.org/HP6/To_Be_Exercise1.htm
Exercise 2:
http://www.englishmaven.org/HP6/To_Be_Exercise2.htm
Exercise 3:
http://www.englishmaven.org/HP6/Beginning%20Sentence%20Completion%20Exercise%201.htm
Exercise 4:
http://www.englishmaven.org/HP6/Beginning%20Sentence%20Completion%20Exercise%202.htm
Exercise 5:
http://www.englishexercises.org/makeagame/viewgame.asp?id=641
Exercise 6:
http://www.englishexercises.org/makeagame/viewgame.asp?id=3040