It looks like you have a list of words related to primary stress for a Grade 8 task. Each word seems to have options alongside them. If you need help identifying which syllable should be stressed in each word, here’s a general guideline:

1. **ancestor** - AN-ces-tor
2. **basic** - BA-sic
3. **ethnic** - ETH-nic
4. **complicated** - COM-pli-ca-ted
5. **recognize** - REC-og-nize
6. **vocabulary** - vo-CAB-u-la-ry
7. **archway** - ARCH-way
8. **diversity** - di-VER-si-ty

If you need further assistance with specific words or concepts, let me know!