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er grades next time,” the teacher said to Mary. 6. ____________, nobody knew Sam was back. When he suddenly appeared, everyone was surprised. 7. As a sportsman, the daily training ____________ a lot of his time. 8. Liu Xiang can ____________ the world’s best sports stars. Unit 2 Ⅰ . 1. coach 2. encourage 3. record 4. medal 5. represent Ⅱ . 1. for 2. around / in 3. of 4. in 5. Like 6. for 7. from 8. in Ⅲ . 1. First of all