Sure! Here are the answers for each question:
Question 1
A) For which subject would a writer use a singular verb?
Answer: the head of government and state
(Explanation: "The head of government and state" is a singular noun phrase, whereas the others are plural.)
Question 2
A) Which verbs agree with the subject everyone? Select the two correct answers.
Answer: is and relies
(Explanation: "Everyone" is a singular pronoun, so it takes singular verbs.)
Question 3
A) Why is the pronoun their used in this sentence?
Answer: The antecedent is both dad and sisters, which makes it plural.
(Explanation: "Their" is used to refer to the input from both "dad" and "sisters," which collectively is a plural antecedent.)
Question 4
A) Which sentence includes a comma splice?
Answer: I told her she shouldn’t go on that trip, she didn’t listen.
(Explanation: A comma splice occurs when two independent clauses are joined with just a comma. This sentence does that.)
Question 5
A) Which choice best explains why this is a sentence fragment?
Answer: It is a dependent clause.
(Explanation: The sentence begins with "Although," which indicates that it is a dependent clause and not a complete thought.)
I hope this helps with your questions!