http://www.saintambrosebarlow.wigan.sch.uk/Y5Spelling/plurals2y6t1.htm
Homophones
http://www.saintambrosebarlow.wigan.sch.uk/Y5Spelling/homophones1.html
http://www.saintambrosebarlow.wigan.sch.uk/Y5Spelling/homophones3.htm
More: http://www.woodlands-junior.kent.sch.uk/interactive/literacy.html#10