Choose the appropriate verbs in brackets to complete the sentences. Пример:1. We know little about the system of education

1. Robert is a well-known jumper, a very good one indeed. 2. Little children like to make sandcastles on sandy beaches. 3. This is a very useful rule. 4. Lizzy felt sad and unhappy because she had nobody to play with. 5. People in Europe have Christmas celebrations in December. 6. I didn\'t understand why Greg greeted me so coldly. 7. We didn\'t know anything about his collection of badges. 8. The Mississippi is a great and powerful river in North America. 9. What beautiful uniforms these officers are wearing!