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)Ittime 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 exam9 It's possible that Tracey lied to us. (may)to us.Tracey10 Every student at school came to the Open Day. (all)at school went to the Open Day.
I must have lost my watch when we were on the beach.It doesn't take much time to download a film from this website.I should not have copied your work in the exam.Tracey may have lied to us.All students at school came to the Open Day.