问题
填空题
Choose and write. (把下面的单词分类)
Word List
swim taller toothache cold skating danced play football
fever younger sang stronger ate funnier headache saw skiing
1.Comparative degree (比较级): ________________________________________
2. Sickness (疾病): ____________________________________________________
3. Sports: ________________________________________________________
4. Past tense (过去式): _________________________________________________
答案
1. Comparative degree: taller younger stronger funnier
2. Sickness: toothache cold fever headache
3. Sports: swim skating football skiing
4. Past tense: danced sang ate saw
类的药理作用有（）。