be going to and will exercises

http://www.ompersonal.com.ar/omexercise/tiemposverbales/unit03.htm
http://www.ompersonal.com.ar/omexercise/tiemposverbales/unit06.htm
http://www.euroresidentes.com/curso-ingles/El-futuro-con-going-to.htm
http://www.euroresidentes.com/Blogs/curso_ingles/2006/01/el-futuro-en-ingls-con-will.html
http://www.saberingles.com.ar/exercises/103.html