1. We can't eat now because there isn't enough time. TOO
There is now.
2. Sam lost his job because he was lazy. SO
Sam was he lost his job
3. I couldn't buy the house because it was expensive. TOO
The house
4. There was too much noise, so we couldn't hear the speech. SO
There was hear the speeech
5. The house was too small to live in comfortably. ENOUGH
The house wasn't comfortably
6. William never makes mistakes because he is a careful reader. SUCH
William is he never makes mistakes.
7. The class was cancelled because there weren't enough students. SO
There were the class was cancelled.