选择下列选项,补全对话(填字母编号)。 Chen Jie: Which 1. ________ do you like best, Mike? Mike: I like summer best. Chen Jie: 2. ________ do you like summer best? Mike: Because I can eat ice cream and 3. ________ in the lake. Chen Jie: I don't like summer. It's too 4. ________. Zhang Peng: What's your favourite season? Chen Jie: Spring. It's 5. ________ and warm. I can plant trees and fly kites. How 6. ________ you, Zhang Peng? Zhang Peng: My favourite season is 7. ________ because I can skate ( 滑冰 ). A. Why B. hot C. about D. season E. swim F. sunny G. winter