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Predicate nominative is also popularly known as the predicate noun. It is a noun, a pronoun or any nominal that follows the linking verb and most of the time the form of the verb be. It links or completes the linking and change the name of the subject. It complements or completes the verb in the sentence. However, predicate nominative completes only linking verbs. Predicate nominative can be compound while some do not have one. Therefore in the sentence "Sugar is the main ingredient in taffy", the predicate nominative is "ingredient".
Answer:
Zora's lemon tree produces too much fruit. She gives them away, therefore, to her friends and neighbors.
Explanation:
Out of the three sentences given in the question, the correct sentence with correct punctuation will be the second option.
The second sentence's use of the punctuation marks, the separation all makes it correct. The use of a comma before and after 'therefore' is correct, for it is the joining word or the bridging word for the sentences.
Zora's lemon tree produces too much fruit. She gives them away, therefore, to her friends and neighbors.
While in the other two sentences, we see the continuous flow of the sentence without any use of the full stop.
Sentences1 and 3 are wrong as -
Zora's lemon tree produces too much fruit. She gives them them away therefore, to her friends and neighbors.
Zora's lemon tree produces too much fruit. She gives them away, therefore to her friends and neighbors.