Напиши существительные во множественном числе, как показана в образце. Образец:chimp (11) - eleven chimps. 1) book (20) ... 2) pen (17) ... 3) pencil (19) ... 4) pencil case (15) ... 5) school bag (18) ... 6) ruler (13) ... 7) rubber (16) ... 8) school (14) ... 9) subject (12) ...

1. I have twenty English books. 2. He has seventeen different pens. 3. She has nineteen coloured pencils. 4. Have you fifteen pencil cases in your shop? 5. There are eighteen pupils in our class, so we have eighteen school bags. 6. We have bought thirteen rulers today. 7. We need sixteen rubbers at once. 8. There are fourteen schools in this city. 9. I have twelve subjects at school.