Second Conditional

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

http://www.learnenglish-online.com/grammar/tests/2ndconditional.html

http://www.englishgrammarsecrets.com/secondconditional/exercise2.swf

http://www.perfect-english-grammar.com/second-conditional-exercise-1.html

http://www.englishgrammarsecrets.com/secondconditional/exercise3.swf

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