Answer:
The members of the book club reads a new book every month.
Explanation:
Subject-verb agreement is all about writing the subject and the predicate of the sentence in the same person and number.
In sentence 1), subject is "turtles", which is third person plural. Verb is "hide" which is also form for third person plural.
Third sentence uses "I" and "throw" and here subject and verb also agree.
Last sentence's subject is "they", third person plural and it agrees with the form "do not go".
Finally, sentence 2) uses "the members of the book club" as the subject, which is third person plural, but the verb is "reads" which is third person singular, thus, there is no subject-verb agreement.
