2nd CONDICIONAL

Some links with exercises about the 2nd type conditional.
Remember the structure:

 If + past simple  +     would + infinitive

http://www.aprenderinglesfacil.es/2008/09/ejercicios-oraciones-condicionales.html

http://www.aprenderinglesfacil.es/2008/09/ejercicios-oraciones-condicionales_06.html

http://www.theyellowpencil.com/tocondicional2.html