For example:

That book which is on the table is mine. That book that is on the table is my book.

Are there any rules when to choose that or which?

  • MR.eee, welcome to ELL! I hope you'll find the answer to your question on the question linked at the top of this page, and continue to stay here at ELL and ask more questions! – WendiKidd Mar 10 '13 at 21:41