Here are the odd ones out for each of the exercises provided:

### Exercise 1: Circle the odd one out
1. **Run**, **Skip** - (Odd one out: **Skip** as it's more of a playful motion)
2. **Football**, **Sports** - (Odd one out: **Sports** as it's a category)
3. **Park**, **Chair** - (Odd one out: **Chair** as it's furniture)
4. **Plane**, **Happy** - (Odd one out: **Happy** as it's an emotion)
5. **Walk**, **Sing** - (Odd one out: **Sing** as it's a vocal activity)
6. **Activity**, **Bike** - (Odd one out: **Activity** as it's a general term)
7. **Volleyball**, **Badminton** - (Odd one out: (None) as they are both sports)
8. **Outdoor**, **Cycling** - (Odd one out: **Outdoor** as it's a setting)
9. **Is**, **Am** - (Odd one out: **Am** based on grammatical usage)
10. **Fun**, **Play** - (Odd one out: **Fun** as it's an abstract concept)

### Exercise 2: Circle the correct answers
1. D. **Skate**
2. D. **Badminton**
3. D. **Desk**
4. D. **Kite**
5. D. **Picture**
6. C. **Ball**
7. D. **Basketball**
8. D. **Walking**
9. D. **Are**
10. D. **Sing**

Feel free to adjust any answers based on context!