听一段材料，回答1-5小题 1.How old was Tom when he went on a holiday with his friends? A. He was 16. B. He was 17. C. He was 18. 2.Why did his mother ask his aunts, uncles and grandparents to write to him? A.She thought he was happy to read letters from his family. B. She thought his family want to know something about his holiday. C. She didn’t want to write letters herself. 3.Did Tom write letters back home? A. Yes, he did B. Only a few C. No, he didn't 4.Why didn't Tom read all of his family’s letters? A. He didn't want to read those letters. B. He didn't have enough time to read all of them. C. He couldn't read any letters there. 5.Where did Tom read his family’s letters? A. At home B. When he was on his holiday C. When he was on his holiday and at home.