1. Henry was not strong enough to go to school himself.
2. Tom did not get as many good marks as Peter.
3. We were not as good at swimming as they used to be.
4. Hoang is younger than Hung.
5. The book isn't short enough for me to read in one hour.
6. I'll do this work this evening if you want.
7. She is old enough to start school.
8. Joan isn't interested in reading her written stories.