[6]
1. Books which sell well are not always good.
2. Nothing (but a miracle can save her) now.
3. I (can hardly wait to get out of) the hospital.
4. Everyone knows that he (would be the last person to break his) promise.
5. The performance (had hardly started when the lights went) out.
[7]
1. I don't always get up early.
2. We could not help crying to hear the sad news.
3. There was little food left on the table.