Here are the words whose main stressed syllable is placed differently from the others in each group:

1. **C. badminton** - The stress is on the first syllable, whereas in the others (football, windsurfing, and aerobics), the stress is more evenly distributed.

2. **B. weather** - The stress is on the first syllable, while in the others (volleyball, winter, and vacation), the stress is on the second syllable.

3. **C. cricket** - The stress is on the first syllable, compared to the others (climbing, canoeing, and cycling), which have stress on the second syllable.

4. **D. movie** - The stress is on the first syllable, while for the others (leisure, diving, and origami), the stress can be considered less straightforward and varies in patterns.

5. **D. detest** - The stress is on the second syllable, while the other three (adore, enjoy, fancy) have stress on the second syllable as well but are more directly emphasizing the action, making them sound somewhat different.

6. **B. improve** - The stress is on the second syllable, while the other three (bookstore, goldfish, and novel) have stress on the first syllable.

7. **C. volunteer** - The stress is on the last syllable, while the others (satisfy, average, and cultural) have stress on the first syllable.

8. **C. community** - This word has stress on the second syllable while the others (origami, delicious, and technology) have stress typically placed differently or more equally distributed.

9. **D. addict** - The stress is on the second syllable, while the other three (detest, discuss, and adore) have a more even and first syllable emphasis.

10. **A. teenager** - The stress is placed differently, on the first syllable, while the others (negative, solution, and benefit) follow more of a second syllable pattern.

(Note: For some of these words, stress patterns can vary based on regional accents or speech habits, but the indicated words represent general stress patterns in common American English usage.)