Interactive exercises and printable

http://www.englishexercises.org/exercise.asp?id=7960#a

http://www.englishexercises.org/makeagame/viewgame.asp?id=4413

http://www.englishexercises.org/makeagame/viewgame.asp?id=5211

http://www.englishexercises.org/makeagame/viewgame.asp?id=5815
Possessive adjective

http://www.englishexercises.org/makeagame/viewgame.asp?id=1970
Have or has

http://www.englishexercises.org/makeagame/viewgame.asp?id=5283
Wh - Questions