1. Comb, scissors, razor (6)
2. Handcuffs, helmet, arrest (9)
3. Letter-box, parcel, delivery (7)
4. Recipe, food, kitchen (4)
5. Crown, palace, queen (4)
6. Medicine, patient, hospital (6)
7. Chalk, students, lessons (7)
8. Newspaper, editor, story (8)
Lesson 1
Lesson 2
Lesson 3
Lesson 4
The future
Explanations