1. To avoid using unnecessary colons, use the colon only after a/an ________.

A. coordinating conjunction
B. series of items
C. main clause
D. introduction

2. A(n) ________ introduction establishes your authority on the topic and sets the stage for the discussion contained in your essay.

A. historical
B. broad-to-narrow
C. anecdotal
D. background

I believe 1 is C. 2 is Background?

The answer to #2 is A

Yes, you are correct.

1. To avoid using unnecessary colons, you should use the colon only after a main clause. Option C is the correct answer.

2. A background introduction establishes your authority on the topic and sets the stage for the discussion contained in your essay. Option D is the correct answer.

Yes, you are correct. For question 1, the answer is C. main clause. To avoid using unnecessary colons, you should only use the colon after a main clause.

To explain further, a main clause is a complete sentence that expresses a complete thought. In English grammar, a colon is often used after a main clause to introduce a list, an explanation, or an elaboration. For example: "I have three favorite colors: blue, green, and purple."

Using a colon after anything other than a main clause, such as a coordinating conjunction (A), a series of items (B), or an introduction (D), would be considered incorrect usage.

For question 2, the answer is D. background. A background introduction in an essay is used to establish your authority on the topic and provide context for the discussion that will follow. It typically includes relevant information about the subject, historical context, or any necessary background knowledge.

Other types of introductions, such as historical (A), broad-to-narrow (B), or anecdotal (C), may be effective in certain situations, but a background introduction specifically serves the purpose of providing necessary background information for the essay.

I agree with both.