Comprehensive Grammar websites:
Grammar Websites
A Good website for explaining grammar and parts of speech:
http://www.towson.edu/ows/aux_verbs.htm
Parts of speech game:
http://www.abcya.com/parts_of_speech.htm
Another parts of speech exercise:
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/parts.htm
Basic Grammar in Use Evaluation Test
http://www.cambridge.org/other_files/downloads/esl/giu/bgiu-evaluation/interactive_test.ht
http://www.towson.edu/ows/aux_verbs.htm
Parts of speech game:
http://www.abcya.com/parts_of_speech.htm
Another parts of speech exercise:
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/parts.htm
Basic Grammar in Use Evaluation Test
http://www.cambridge.org/other_files/downloads/esl/giu/bgiu-evaluation/interactive_test.ht