P125~P130
1. Forecast的两种词性和两种词意
2. forget to do和forget doing的区别
remember to do和remember doing的区别
regret to do 和 regret doing的区别
try/attempt to do和try/attempt doing的区别
go on/ continue to do和go on/continue doing的区别
3. forever的三种词义
4. forgive的过去式过去分词
5. form的两种词性和五种词义
6. formal的反义词
7. fortune的形容词和副词形式，以及它们的中文意思
8. found的过去式和过去分词
9. free的三种词性和八种词义
10. freedom
11. freeze 的过去式和过去分词
12. frequent的一、副词形式
13. fresh的两种词意
14. friend的形容词形式
15. frightening和frightened的形容词中文意思
16. in front of和in the front of的区别
17. in future和in the future的区别
18. fund的两种词性和词义
19. fun可数吗
20. 翻译
Forehead
Gather
Bridge/ narrow/ the gap
Gallery
Gain
Further
Be full of
Make fun of
Function
From now/ then on
Frustration
Fuel
Fruit
Framework
Fountain
Look forward to doing
Frankly
Formal
Former
Foreign language