The graceful dancer moved across the stage as the music began to play.

Which of the following is the meaning of the suffix "-ful" as used in the sentence above?

The sentence that demonstrates proper subject-verb agreement is D. "Physics is a difficult subject to learn." In this sentence, the singular subject "Physics" agrees with the singular verb "is."

The concluding sentence of a paragraph serves to sum up the main idea or point that has been discussed in the paragraph. It provides closure to the paragraph and helps transition to the next one. Therefore, the correct answer is B.

"The book" is the subject, and "is" correctly agrees with it. The other sentences have incorrect verb forms for their subjects.

The ureter is a large tube that carries urine from the kidneys to the bladder. The other options are small (microscopic) parts of the kidney that help filter blood.

The language convention violated in the sentence is pronoun-antecedent agreement. The pronoun "you" does not agree in number with its antecedent "a person." It should either be "he or she" or "they" to agree with the singular or plural antecedent.

The final step of the writing process is editing, where the writer reviews and revises their work for clarity, coherence, and correctness.

The sentence "He liked to cook at home, but she preferred to eat at restaurants." correctly uses a compound sentence structure. It consists of two independent clauses "He liked to cook at home" and "she preferred to eat at restaurants" joined by the coordinating conjunction "but".

The word that defines "subterranean" based on the prefix "sub-" is B. Underground.

In the sentence, "The pumpkin crop was incredibly small this year because of excessive rain in the spring and he", the word "incredibly" is an adverb. Adverbs are words that modify verbs, adjectives, or other adverbs. In this case, "incredibly" modifies the adjective "small," indicating the degree or intensity of the smallness of the pumpkin crop.

This sentence presents a specific statistic that may not be common knowledge and is not the author's original idea, so it requires a citation to give credit to the source of this information. A citation is needed to show where this statistic came from, who conducted the study, and when it was conducted. Therefore, option C is the correct answer.