Present simple vs present continuous
www.isabelperez.com/happy/tenses/exercises/present_6.htm
www.englisch-hilfen.de/en/exercises/tenses/simple_present_progressive.htm


Present simple
www.isabelperez.com/happy/tenses/exercises/pres_simple_quest6.htm
www.englisch-hilfen.de/en/exercises/questions/simple_present.htm
www.englisch-hilfen.de/en/exercises/tenses/simple_present_mix.htm

Present continuous
www.isabelperez.com/happy/tenses/exercises/present_cont_1.htm
www.englisch-hilfen.de/en/exercises/questions/present_progressive.htm


Present perfect
www.englisch-hilfen.de/en/exercises/tenses/present_perfect_statements.htm
www.ego4u.com/en/cram-up/tests/present-perfect-simple-1

UNIT 4

QUESTION TAGS

http://www.ego4u.com/en/cram-up/grammar/question-tags/exercises

http://www.english-zone.com/grammar/tags01.html

http://www.englishclub.com/grammar/verbs-questions-tag_quiz.htm

http://www.englisch-hilfen.de/en/exercises/questions/question_tags3.htm

MODAL VERBS

http://www.englishpage.com/modals/interactivemodal2.htm

http://web2.uvcs.uvic.ca/elc/StudyZone/330/grammar/negmod1.htm

http://perso.wanadoo.es/autoenglish/gr.must.p.htm

http://usuarios.lycos.es/englishweb/gramatica/ObligProhib.htm

http://www.englishpage.com/modals/interactivemodal1.htm

FIRST CONDITIONAL

http://www.ego4u.com/en/cram-up/grammar/conditional-1-simple/exercises

http://www.better-english.com/grammar/firstconditional1.htm

http://www.englishgrammarsecrets.com/firstconditional/exercise1.html

UNIT 5

PRESENT PERFECT VS VS PRESENT PERFECT CONTINUOUS

http://perso.wanadoo.es/autoEnglish/gr.percon.i.htm

http://www.learn4good.com/languages/evrd_grammar/presentpcont_exc.htm

http://www.englishpage.com/verbpage/verbs7.htm

GERUNDS AND INFINITIVES

http://www.englisch-hilfen.de/en/exercises/structures/gerund_infinitive.htm

http://www.ego4u.com/en/cram-up/grammar/infinitive-gerund/exercises?08

http://perso.wanadoo.es/autoenglish/gr.infing.i.htm

COUNTABLE AND UNCOUNTABLE NOUNS

http://www.1-language.com/englishcourse/unit9_grammar_exs.htm

http://www.1-language.com/englishcourse/unit9_grammar_exs2.htm

http://perso.wanadoo.es/autoenglish/count.htm

http://www.nonstopenglish.com/exercise.asp?exid=910

http://www.isabelperez.com/count-uncount.htm

UNIT 6

PAST PERFECT

http://www.ego4u.com/en/cram-up/grammar/past-perfect-simple/exercises?03

http://www.ego4u.com/en/cram-up/grammar/past-perfect-simple/exercises?04

http://www.ego4u.com/en/cram-up/grammar/past-perfect-simple/exercises?05

USES OF LIKE

http://pagesperso-orange.fr/absolutenglish-972/notes/grammar/like/like2.htm

http://www.esl-lab.com/des1/des1.htm

http://www.esl-lab.com/des1/des1.htm

ARTICLES A, AN, THE

http://www.englisch-hilfen.de/en/exercises/nouns_articles/article_the.htm

http://www.englisch-hilfen.de/en/exercises/nouns_articles/article_a.htm

http://www.english-test.net/esl/learn/english/grammar/ei098/esl-test.php

UNIT 7

SUBJECT AND OBJECT QUESTIONS

http://esl.about.com/library/quiz/blgrquiz_questionforms_subob.htm

http://esl.about.com/library/lessons/blquestions.htm

http://www.ice.urv.es/eoiact/level2/subject_object_questions.htm

USED TO

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-39054.php

http://www.learn4good.com/languages/evrd_grammar/usedtodo.php3

http://www.englishclub.com/grammar/verbs-m_used_quiz.htm

http://www.englishgrammarsecrets.com/usedto/exercise1.html

WOULD/USED TO

http://mbonillo.xavierre.com/httpdocs/exercises/bch2/usedwould1.htm

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-26509.php

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-26230.php

MODALS OF ABILITY

http://users.fulladsl.be/spb9193/mod_ab1.htm

http://esl.lbcc.cc.ca.us/eesllessons/modals/cancould/cancouldmc1.htm

http://esl.lbcc.cc.ca.us/eesllessons/modals/cancould/cancouldfib.htm

UNIT 8

SECOND CONDITIONAL

http://perso.wanadoo.es/autoenglish/gr.con2.p.htm

http://www.angelfire.com/wi3/englishcorner/grammar/Interactive/scndcond02.html

http://www.englishgrammarsecrets.com/secondconditional/exercise1.html

http://www.englishgrammarsecrets.com/secondconditional/exercise4.html

http://www.englishgrammarsecrets.com/secondconditional/exercise5.html

ADVERBS

Adverbs of manner

http://www.ego4u.com/en/cram-up/grammar/word-order/exercises?08

http://www.learnenglish.de/Games/Adverbs/Adverbs.htm

Adverbs of frequency

http://www.english-zone.com/verbs/freq-adv01.html

http://perso.wanadoo.es/autoenglish/gr.frequ.i.htm

http://perso.wanadoo.es/autoenglish/gr.frequ.p.htm

Adverbs of degree

http://perso.wanadoo.es/autoenglish/gr.degree.i.htm

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-4102.php

THIRD CONDITIONAL

http://perso.wanadoo.es/autoenglish/gr.con3.p.htm

http://perso.wanadoo.es/autoEnglish/gr.con3.i.htm

http://www.englishgrammarsecrets.com/thirdconditional/exercise1.html

http://www.englishgrammarsecrets.com/thirdconditional/exercise3.html

UNIT 9

MAKE, LET, ALLOW

http://perso.wanadoo.es/autoenglish/gr.allow.p.htm

http://perso.wanadoo.es/autoenglish/gr.allow.i.htm

http://www.usingenglish.com/quizzes/334.html

REPORTED SPEECH

http://www.englisch-hilfen.de/en/exercises/reported_speech/commands.htm

http://www.englisch-hilfen.de/en/exercises/reported_speech/commands_negations.htm

http://www.englisch-hilfen.de/en/exercises/reported_speech/statements.htm

http://esl.about.com/library/quiz/blgrquiz_reported1.htm

PAST OBLIGATION/PERMISSION

http://www.oup.com/elt/global/products/naturalenglish/int/a_grammar/unit05/neint_grammar05_exp/

http://www.oup.com/elt/global/products/naturalenglish/pre/a_grammar/unit05/nepre_grammar05_2/

http://unamsanantoniolab.com/eng/modals/obligation/ex5.htm

UNIT 10

WISH/ IF ONLY

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-5529.php

http://english.baladre.org/sedaviwebfront/wish1.htm

http://www.adrformacion.com/udsimg/ingles4/2/Ingles4L2-18a.htm

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-49088.php

PAST TENSES EXERCISES

http://www.english-room.com/pasttense_6a.htm

http://www.englishpage.com/verbpage/verbs4.htm

http://www.englishpage.com/verbpage/verbs6.htm

http://www.englishpage.com/verbpage/verbs12.htm

PHRASAL VERBS

http://www.englisch-hilfen.de/en/exercises/structures/phrasal_verbs_sentences.htm

http://www.englishclub.com/vocabulary/phrasal-verbs-quiz.htm

http://www.englishclub.com/grammar/verbs-phrasal-verbs_quiz.htm