Now for the tricky one...
(these questions may be cryptic)

1. You'll get lots of letters from Google's parent
2. Where ad clickers arrive on your site 7, 4
3. The biggest factor in determining QS
4. Split test your ad text with this feature 2,10
5. It's important to make a good first metric
6. Search ads, but only shown to previous visitors
7. Users will be sent here in the end 5,3
8. Show us what you do on the gdn
9. A measure of relevance between keywords, ads, landing pages 7,5