Exercises and video explanation of certain grammar topics
25) http://owl.english.purdue.edu/handouts/grammar/index.html
Detailed explanations of all grammar and writing points
26) http://www.oocities.org/zinck_d/gram-prac.html
This is my page of grammar practice exercises. You should find exercises for the grammar covered in your course. If you don’t, let me know, and I’ll try to find some!