Answer:
1. The narrator's mother is one half of a blindfolded Trapeze Act
2. Mr. and Mrs. White were horrified by the result of their wishes
3. Louise Erdrich wrote about a definitive moment in her life
4. The Monkey's paw brings bad luck to anyone who used it
You need to make sure your sentence is in the right tense. Past, present or future tense.
Past: Was
Present: is
future: will