Rewrite the sentences below that contain errors in pronoun-antecedent agreement. If a sentence is correct, write "correct."

1. Some of my friends wrote to NASA in their spare time to find out how to become an astronaut.
2. Either civilians or military personnel many begin their training while in college.

The ones I have types are my answers.

Right. :-)

I don't understand sentence 2.

1. Some of my friends wrote to NASA in their spare time to find out how to become astronauts.

Explanation: The antecedent "friends" is plural, so the pronoun should be plural as well. Hence, it should be "astronauts" instead of "an astronaut."

2. Either civilians or military personnel may begin their training while in college.
Explanation: The antecedent "civilians or military personnel" is plural, so the pronoun should be plural as well. Hence, it should be "their" instead of "many."