C. a refrain, because it's a point of emphasis
Question 1: which. Question 2: that.
Answer:
In high school, all four constructive speeches are generally eight minutes long and all four rebuttal speeches are four or five minutes in length depending on the region; in college they are nine and six minutes long respectively. All cross-examination periods are three minutes long in high school and in college.
To ask someone earnestly or to treat someone in a specified manner
<span>What is the simple subject? Maria is my cousin.
Maria is the simple subject in the sentence.
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