Verb Tenses On line Tests

Check your knowledge of verb tenses in the following online test sites:

http://www.englishexercises.org/makeagame/viewgame.asp?id=8820

http://www.englishexercises.org/makeagame/viewgame.asp?id=9072

http://www.leshoekje.be/leshoekje/ICT-oef%20ENG2/present-past3.htm

http://www.ego4u.com/en/cram-up/grammar/simpre-prepro/tests?test1