Phrasal Verbs

http://www.bbc.co.uk/worldservice/learningenglish/radio/specials/148_phrasalverbs/page3.shtml

http://www.esl-lab.com/phone/phonerd1.htm

http://www.englishmedialab.com/grammar.html

http://www.englishforum.com/00/interactive/ex07.html

Past Tenses

http://www.englishpage.com/verbpage/verbs3.htm