I'M STUDYING ENGLISH

Here, there are three links where you can exercise your knowledge about this tense.

PRESENT CONTINUOUS, AFFIRMATIVE FORM

PRESENT CONTINUOUS, MAKING QUESTIONS

PRESENT CONTINUOUS, FIND THE MISTAKES

 

http://www.wikisaber.es/Contenidos/LObjects/Macmillan_scorm1_sco_28/index.html

http://www.wikisaber.es/Contenidos/LObjects/Macmillan_scorm1_sco_29/index.html

http://www.wikisaber.es/Contenidos/LObjects/Macmillan_scorm1_sco_30/index.html