Complete the sentences. Use past perfect.Example: I went to see the baseball match becouse ,,, (not see).I went to see

1. We bought some sandwiches and ate them because we had not had lunch before. 2. Sally felt very unhappy because she had missed her favourite film. 3. They stayed at home because it had started raining. 4. My friend was happy because he had won the first place in skiing. 5. Dick was very tired because he had walked their way. 6. He said that the  boy who had won the 100-metre race was my best friend. 7. Everybody was surprised because the new team had won the game. 8. Steve felt very bad because he had come down with a cold. 9. I came to school on time because I had caught the early bus. 10. I knew how to play chess because my father had taught me.