english exercises
Describe pictures
Present Continuous with Mr. Bean
Present Continuous Parade
Cambridge English - Present Continuous
http://www.englishpage.com/verbpage/presentcontinuous.html
http://www.englishclub.com/grammar/verb-tenses_present-continuous_quiz.htm
http://www.uhu.es/antonia.dominguez/present.pdf
http://www.ego4u.com/en/cram-up/tests/present-progressive-1