1.( Two yo-yo world's records) John
has already set two yo-yo world's records
2. (every trick) John
Hasn't learned every trick yet
3. (more than 300 chess games) John
has already won more than 300 chess games
4. (a math contest) Elizabeth
has already won a math contest
5. (high school) Elizabeth
hasn't finished high school yet
6. (University math classes) Elizabeth
has already taken university math classes
