Circle the odd one out

Exercise 2. Circle the odd one out.
1. A. Africa
B. America
2. A. Asia
B. delicious
3. A. tower
4. A. market
5. A. tower
6. A. small
7. A. America
8. A. crowded
9. A. remember
10. A. competitive
B. square
B. journey
B. tomorrow
B. Europe
B. Antarctica
B. delicious
B. holiday
B. dangerous
C. crowded
C. Europe
C. shell
C. landmark
C. crowd
C. continent
C. helpful
C. relevant
C. summer
C. dinner
D. Antarctica
D. Holland
D. well-known
D. rent
D. around
D. Africa
D. Asia
D. Europe
D. palace
D. delicious