---Don’t worry about your exam. You should be ________. ---Thank you for your advice A. nervous B. relaxing C. relaxed
He failed the exam ________he was too careless.
You can’t do _______ before you finish your homework.
Mr. Lee has worked in a bookshop _______he left college in 2007.
Mike was ill yesterday,_______ he didn’t go to school.
September is the ____ month of a year.