I see the sea! He rode along the road. Fir trees and fur coats. I ate eight biscuits. Our hour has come. Shake hands with the sheikh. The guerrilla killed the gorilla.
I had a lot of fun writing these homophone sentences. I hope your students enjoy the worksheet too.
I've found that students don't always realise that the words are pronounced the same - I make them read out the sentences to get the idea into their heads that the pronunciation really is identical.
NB. In a few cases they are only homophones in British English.
You can also find practice tasks at http://www.englishshouldbefun.com/homophones/