Let's keep on working on Present Perfect. For this, do the following activities:
1. http://www.isabelperez.com/happy/tenses/exercises/present_perfect_2.htm
2. http://www.isabelperez.com/happy/tenses/exercises/present_perfect_mistakes.htm
3. http://www.isabelperez.com/happy/tenses/exercises/pres_perf_1.htm
4. http://www.englishpage.com/verbpage/verbs5.htm
5. http://www.englishpage.com/verbpage/verbs6.htm
6. GRAMMAR + LISTENING ACTIVITY (http://www.isabelperez.com/songs/whathaveyoudone.htm)
Try it hard!
