3. Even the wisest teacher does not always punish the boy who is most at fault.
4. It is impossible to teach a dog many amusing tricks.
5. Even so stupid a creature as a chicken may sometimes exhibit much intelligence.
6. Carelessness often leads into difficulty.
7. Our school clock must see many interesting things.
8. Our first impressions are not always our best ones.
9. I am a very busy lead pencil, for my duties are numerous.
10. Dickens's characters are taken from the lower classes of people.
11. Some portions of the book I am reading are very interesting.
(Do your specific instances really illustrate the topic statement? Have you said what you intended to say? Can you omit any words or sentences? Have you used and or got unnecessarily?).