6 I'm sure that I lost my watch when we were on the beach.(must) my watch when we were on the beach. 7 It only takes a little time to download a film from this website. (much) It time to download a film from this website. 8 I'm really sorry that I copied your work in the exam(should) your work in the exam 9 It's possible that Tracey lied to us. (may) to us. Tracey 10 Every student at school came to the Open Day. (all) at school went to the Open Day.