1. Join the sentences together to write a defining or non-defining relative clause. a. My sister decided to work in a different area. She was the best student in her course.

Anyone can help me?

My sister, who was the best student in her course, decided to work in a different area.

Explanation:

A relative clause is a clause or part of a sentence that helps define the 'who or what' in the sentence. A defining relative clause identifies the main noun or pronoun we are talking about. On the other hand, a non-defining relative clause provides additional information about the person or thing described.

In the given sentence, the subject is "my sister". By using the non-defining relative clause, we can join the two sentences by using a comma to separate the non-defining relative clause from the rest of the sentence.

Thus, the final sentence will be written as-

My sister, who was the best student in her course (non-defining relative clause), decided to work in a different area.

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attitude toward the subject implied in a literary work.

serious at times, angry, impassioned, and optimistic, but most of all urgent