Chapter 204. Exercise P1-14

204.1 Section Title

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You must read each slide, and complete any questions on the slide, in sequence.
Exercise P1-14
Major uses of the comma
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In each pair, click on the sentence that uses commas correctly. In the correct sentence, all commas that appear are necessary.

Click Submit after each question to see feedback and to record your answer. After you have finished every question, your answers will be submitted to your instructor’s gradebook. You may review your answers by returning to the exercise at any time. (An exercise reports to the gradebook only if your instructor has assigned it.)

Example

Question

Correct. The comma is correct after the introductory subordinate clause. For more help, see section P1.
Sorry. A comma is needed after an introductory subordinate clause. For more help, see section P1.
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Question

Correct. A comma is needed to separate the coordinate adjectives hardworking and ambitious. For more help, see section P1.
Sorry. A comma is needed to separate the coordinate adjectives hardworking and ambitious. For more help, see section P1.
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Question

Correct. No comma is needed before and because the word does not join independent clauses. For more help, see section P1.
Sorry. No comma is needed before the coordinating conjunction and because the word does not join independent clauses. For more help, see section P1.
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Question

Correct. A comma is needed before the coordinating conjunction so because the conjunction joins independent clauses. For more help, see section P1.
Sorry. A comma is needed before the coordinating conjunction so because the conjunction joins independent clauses (word groups that could stand alone as sentences). For more help, see section P1.
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Question

Correct. A comma is needed after an introductory subordinate clause. For more help, see section P1.
Sorry. A comma is needed after an introductory subordinate clause such as Because most banks consider low-income people to be bad credit risks. For more help, see section P1.
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Question

Correct. Except when writing for a publication that follows another convention, use a comma between all items in a series, including the last two. For more help, see section P1.
Sorry. Except when writing for a publication that follows another convention, use a comma between all items in a series, including the last two. For more help, see section P1.
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Question

Correct. The appositive beginning with the practice is nonrestrictive, so it should be set off with a comma. A nonrestrictive word group describes a noun or pronoun whose meaning has already been clearly defined or limited. The comma signals that the information is not essential to the sentence’s meaning. For more help, see section P1.
Sorry. The appositive beginning with the practice is nonrestrictive, so it should be set off with a comma. A nonrestrictive word group describes a noun or pronoun whose meaning has already been clearly defined or limited. The comma signals that the information is not essential to the sentence’s meaning. For more help, see section P1.
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Question

Correct. The who clause restricts the meaning of people, so it is essential information that should not be set off with a comma. For more help, see section P1.
Sorry. The who clause should not be set off by a comma because it is restrictive. Once they’ve read people, readers don’t know just which people are being discussed. The who clause restricts the meaning of people, so it is essential information that should not be set off with a comma. For more help, see section P1.
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Question

Correct. The introductory word group is set off with a comma. For more help, see section P1.
Sorry. The introductory word group In communities where microlending takes place should be set off with a comma. For more help, see section P1.
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Question

Correct. A comma is needed to separate the coordinate adjectives safer and prosperous. For more help, see section P1.
Sorry. A comma is needed to separate the coordinate adjectives safer and prosperous. For more help, see section P1.
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