II)
1 . childhood
2 . invitation
3 . creative
4 . worst
5 . machanic
6 . flight
7 . speech
8 . friendly
9 . sunny
10 . activitíes
III)
1. less => fewer
2 . get => stay
3 . take => takes
4 . play => plays ( ko chắc )
5 . going => to go
6 . homeworks => bỏ s
7 . orange small => small orange
8 . hardly => hard