Present Perfect 4 (Exercise on Line)

http://www.isabelperez.com/happy/tenses/exercises/present_perfect_mistakes.htm

Present Perfect 3 (Exercise on Line)

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

Past Simple / Past Continuous 3 (Exercise on Line)

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

Past Simple / Past Continuous 2 (Exercise on Line)

http://www.ego4u.com/en/cram-up/grammar/simpas-paspro/exercises?ex08

Past Simple / Past Continuous 1 (Exercise on Line)

http://www.ego4u.com/en/cram-up/grammar/simpas-paspro/exercises?ex07

Extreme Adjectives (With Answer Key)

EXTREME ADJECTIVES by joseanis

Past Simple – Past Continuous 2 (With Answer Key)

past simple past continuous by joseanis

Used to, Be used to, Get used to (With Answer key)

USED TO by joseanis

Used to, Be used to, Get used to I (Exercise on Line)

http://www.usingenglish.com/handouts/115.html

Extreme Adjectives II (Exercise on Line)

http://www.ecenglish.com/learnenglish/what-are-extreme-adjectives

Extreme Adjectives I (Exercise on Line)

http://www.englishmedialab.com/Quizzes/advanced/extreme%20adjectives.htm

Past Simple – Past Continuous 1

simple past vs past continuous by joseanis

Past Simple – Past Continuous (Multiple Choice on line)

http://www.languageproject.co.uk/free_exercises/exercise_page.php?ID=75