Here are the corrections for the given sentences:
a. She will either go to the party or stay home and rest.
b. He not only completed his homework but also did his chores.
c. Not only did Tom miss the practice, but he also missed the game.
d. The team plays not only the Rangers, but also the Cougars.
Main points:
- In sentence a, no correction needed. The use of "either...or" is correct.
- In sentence b, "did" needs to be added after "but also" to keep the structure parallel.
- In sentence c, a comma is needed after "practice" and "but he also" is added to keep the structure parallel.
- In sentence d, "plays" should not be "play" since the subject "team" is singular.
To summarize:
- Use parallel structure with correlative conjunctions like "not only...but also".
- Add missing verbs or make verbs agree with subjects.
- Use commas properly to separate clauses.
- "Either...or" constructions are correct in the given usage.
Let me know if you need any clarification or have additional examples to review!