If the appositive phrase is needed to define the meaning of a noun then <u>don't use a comma</u>, if the appositive phrase defines enough where it can stand by it's self alone then <u>use commas around it.</u>
8. Basketball is generally better than tennis. I chose this because the author picked basketball and its best qualities.
9. The boy and the old man are very poor, but they are happy it is referenced in the passage and Patrasche is the dogs name.
10. The old man and boy were never able to make enough food. They were poor and didn't have a big garden to grow an abundance of food.
That's my take on the questions, hope it helps you.
Some examples of similes from 'Letters from Birmingham Jail':
<span>"Like a boil that can never be cured so long as it is covered up but must be opened with all its ugliness to the natural medicines of air and light, injustice must be exposed...."
</span>
<span>"Asia and Africa are moving with jetlike speed..."
</span>
