Which word does sound better?
Changes in the environment cause/ have caused some species to evolve / adapt new characteristics very quickly.
Before the surgery he had lots of pain, but after that he got his health back on track . Is my sentence proper English?
Thank you for spending the time answering my questions.
Last edited by arzgol; 26-Jul-2011 at 02:05.
Are my sentences correct?
Changes in the environment cause/ have caused some species to evolve / adapt new characteristics very quickly.
Before the surgery he had lots of pain, but after that he got his health back on track .
I'm looking forward to receiving your respose.
Last edited by arzgol; 26-Jul-2011 at 16:06.