The sentence that contains an unnecessary shift in verb tense is the second one - Lee noticed a problem and alerts a teacher.
It should be <em>alerted, </em>which is the past tense as the first verb <em>noticed.</em>
The chain of being is composed of a great number of hierarchical links, from the most basic and foundational elements up through the very highest perfection, in other words, God. God sits at the top of the chain, and beneath him sit the angels, both existing wholly in spirit form.
Hope that helps.
The answer is B because none of the other answers are grammatically correct<span />
False, if you dont give the credit to the writer it is plagiarism.