3 Complete the sentences with should or shouldn't. 1 My mum says you play a lot of computer games because it's not good for your eyes. 2 I think everyone read this book. It's fantastic! 3 Don't forget, we've got tickets for the match later. You do your homework now. 4 People eat some fruit and vegetables every day. They're good for you. 5 You look tired. You go to bed so late.