词汇；根据首字母和中文提示写出单词，完成句子，每空一词。
1. You can’t eat too much. You’re too _______________ ( 胖).
2. We all like him because he is _________________ (礼貌的) and helpful.
3. --- When did they _______________ (到达 )? --- Half an hour ago.
4. Children are ________________ (着迷的) about computer games.
5. I like Yao Ming. He is my _______________ ( 英雄).