GRAMMAR:

http://www.ego4u.com/en/cram-up/grammar/relative-clauses

http://www.myenglishpages.com/site_php_files/grammar-lesson-relative-clauses.php

http://torroxenglishdepartment.blogspot.com.es/2012/03/relative-clauses-grammar.html

(SPANISH)

ACTIVITIES:

Fill in the gaps:

http://www.englisch-hilfen.de/en/exercises/pronouns/relative_pronouns.htm

http://www.ego4u.com/en/cram-up/grammar/relative-clauses/exercises?02

http://www.ego4u.com/en/cram-up/grammar/relative-clauses/exercises?11

http://wwwedu.ge.ch/cptic/prospective/projets/anglais/exercises/relpron2.htm (3  consecutive activities)

Join the sentences (defining):

http://www.autoenglish.org/generalgrammar/gr.relative.i.htm

http://www.ego4u.com/en/cram-up/grammar/relative-clauses/exercises

https://www.perfect-english-grammar.com/relative-clauses-exercise-1.html

https://www.perfect-english-grammar.com/relative-clauses-exercise-2.html

https://www.perfect-english-grammar.com/relative-clauses-exercise-3.html

https://www.perfect-english-grammar.com/relative-clauses-exercise-4.html

Join the sentences (non defining):

http://www.ego4u.com/en/cram-up/grammar/relative-clauses/exercises?12

http://www.autoenglish.org/gr.nonrelat.i.htm

Join the sentences (mixed):

http://www.ego4u.com/en/cram-up/grammar/relative-clauses/exercises?07

http://www.iespando.com/web/departamentos/ingles/web/departamento/relativos2/ejercicios/ejeronline3.htm

http://www.xtec.cat/~ogodoy/sac/rephrasing/relclex1.htm

http://www.xtec.cat/~ogodoy/sac/rephrasing/relclex2.htm

http://www.xtec.cat/~ogodoy/sac/rephrasing/relclex3.htm

http://www.xtec.cat/~ogodoy/sac/rephrasing/relclex4.htm

http://www.ego4u.com/en/cram-up/tests/relative-clauses-4

http://valenciaenglish.netfirms.com/relativex02.htm