E.S.O.: Past perfect, present perfect, simple past & past continuous

Log onto the following web sites and do the exercises on the past perfect, present perfect, simple past and past continuous:

http://www.englishgrammarsecrets.com/pastperfect/menu.php

http://www.englishpage.com/verbpage/pastperfect.html

http://www.englisch-hilfen.de/en/exercises/tenses/past_perfect_simple_past.htm

And on so/ neither:

http://www.learn-english-today.com/free-english-lessons/lesson_contents/so_neither-ex.htm

http://club.telepolis.com/englishweb/agreedisagree.html

http://mbonillo.xavierre.com/httpdocs/exercises/eso4/soneither3.htm