Dark- fair
Difficult-easy
Dry-wet
Full-empty
Low-high
Safe-dangerous
Short-tall
Young-old
My friend has got three sisters.
Has my friend got three sisters?
My friend hasn't got three sisters.
4. thought
5. did you eat
6. didn't catch
7. forgot
8. did they tell
9. did
10. didn't drink
11. put
12. didn't know
13. did you go
14. gave
15. read