Open the brackets to complete the text. mr. john green is 70 years old. he (1. be) a real collector of coins. he (2. have) a very good collection and he (3. be) proud of it. he (4. specialize) in coins of english – speaking countries. mr. green (5. begin) (6. collect) stamps when he (7. be) sixteen years old. his parents (8. take)