XII. Complete the sentences, using one of the following. Sometimes you need the singular (day/ page...) and sometimes the plural (days/ pages ...). 15minute(s) twohour(s) five day(s) 60minute(s) sixmile(s) 500year(s) 20pound(s) tenpage(s) 450page(s) twoyear(s) five course(s) 15year(s)old 1. It’s quite a long book. There are 450 pages . 2. A few days ago I received a ten-pase letter. 3. I didn’t have any change. I only had a ____________________ note. 4. At work in the morning I usually have a ____________________ break for coffee. 5. There are ____________________ in an hour. 6. It’s only a ____________________ flight from London to Madrid. 7. It was a big meal. There were ____________________. 8. Mary has just started a new job. She’s got a ____________________ contract. 9. The oldest building in the city is the ____________________ old castle. 10. I work ____________________ a week. Saturday and Sunday are free. 11. We went for a ____________________ walk in the country. 12. I teach English for two ____________________ girls.