reflexive pronouns

http://www.englishexercises.org/makeagame/viewgame.asp?id=1327

reflexive 5

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-2273.php

reflexive 4

http://inglesnanet.com/grammar/reflex.htm

reflexive 3

http://www.learnenglishfeelgood.com/reflexive-pronouns-exercise2.html

reflexive 2

http://www.learnenglishfeelgood.com/reflexive-pronouns-exercise1.html

reflexive 1

http://www.members.iinet.net.au/~adelegc/grammar/reflexive_pronouns/reflexive_pronouns2.html

Present Perfect Simple

http://www.englishteststore.net/index.php?option=com_content&view=article&id=10588:English-Present-Perfect-Tense---Test-03&catid=286:basic-grammar-present-perfect&Itemid=391

Present Perfect Simple Vs Simple Past

http://web2.uvcs.uvic.ca/courses/elc/studyzone/330/grammar/upperf2.htm

Present Perfect Simple vs Past Simple

http://www.english-grammar-lessons.com/presentperfectorpastsimple/exercise1.swf

present perfect simple

http://www.englishteststore.net/index.php?option=com_content&view=article&id=10591:English-Present-Perfect-Tense---Test-06&catid=286:basic-grammar-present-perfect&Itemid=391

Present Perfect

http://www.bastrimbos.com/Hotpotatoesfiles/presperfbev2.htm

Present Perfect Simple

http://www.englisch-hilfen.de/en/complex_tests/present_perfect1/index.php?action=start2&aufgid=12&Submit=Answer+a+special+part