http://www.perfect-english-grammar.com/first-conditional-exercise-1.html http://www.englishexercises.org/makeagame/viewgame.asp?id=3226 http://www.esl-lab.com/bakingcookies/bakingcookiesrd1.htm http://eolf.univ-fcomte.fr/wp-content/uploads/herethere/17.htm

collocations

https://www.englishclub.com/ref/Collocations/index.htm

LISTENING

http://eolf.univ-fcomte.fr/wp-content/uploads/herethere/01.htm ---- http://eolf.univ-fcomte.fr/wp-content/uploads/herethere/02.htm

http://www.englishexercises.org/makeagame/viewgame.asp?id=3110 ---- http://www.saberingles.com.ar/curso/lesson17/05.html ..... http://www.grammar-quizzes.com/infinitive3b.html ---- http://www.esl-lounge.com/student/grammar/2g38-using-enough.php ---- http://www.saberingles.com.ar/listening/102.html

http://www.myenglishpages.com/site_php_files/grammar-lesson-conjunctions.php ----- http://www.myenglishpages.com/site_php_files/grammar-exercise-conjunctions.php ---- http://www.myenglishpages.com/site_php_files/grammar-exercise-but-vs-and.php ---- http://www.learnenglishfeelgood.com/english-grammar-conjunctions2.html ---- http://www.esl-lab.com/story1/storysc1.htm

http://www.esl-lab.com/newyorktravel/newyork-travelsc1.htm ----- http://www.quia.com/cz/310465.html

http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple ----