EXTRA WORK
Exercises
1) Presentt Simple (aff) http://www.isabelperez.com/pr-simple.htm
2) Present Simple (neg) http://www.isabelperez.com/pr-simple-neg.htm
3) Present Continuous (aff) http://www.isabelperez.com/happy/tenses/exercises/present_cont_1.htm
4) Present Continuous (neg) http://www.isabelperez.com/happy/tenses/exercises/present_cont_2.htm
5) Present Simple / Present Continuous http://www.englishpage.com/verbpage/verbs1.htm (5 sentences)