Question

Where does the comma belong?
After she learned the rules for using commas her grades improved.

Answer 1

The comma should be placed after the introductory phrase 'After she learned the rules for using commas' in the sentence provided. Commas are used to separate introductory elements from the main clause, in lists, with coordinating conjunctions, and around nonessential information. Common errors include omitting commas after introductory phrases or subjects.

Step-by-step explanation:

The comma in the sentence 'After she learned the rules for using commas her grades improved' belongs right after the introductory phrase and before the main clause, to separate the two.

The correct placement of the comma would be: 'After she learned the rules for using commas, her grades improved.' This follows the rule that one should use a comma after an introductory element at the start of a sentence. Let's review a few rules and examples to better understand comma usage.

When we have an introductory phrase that explains or introduces the main clause, we separate it with a comma. This is especially true if the introductory phrase is longer than four words. However, even shorter introductory phrases often have a comma for clarity.

Examples:

• 
  
• Shuffling his feet nervously, he waited for the train.
• 
  
• If you speak the truth, have a foot in the stirrup.

Additionally, we use commas to separate elements in a list, after coordinating conjunctions when they join two independent clauses, and around nonessential information.

Commas with numbers, dates, addresses, and titles with names are also common practices. Be aware of common comma errors such as no comma after a subject, which can lead to choppy sentences or obscured meaning.

In serial listings, the usage of the Oxford comma before the last item in the list adds clarity but is not always mandatory, except in academic or professional writing where it is commonly employed.

Let's correct the sentences given in the review questions based on these rules:

1. 
   
3. I finally found my keys, and I got to work just in time.
4. 
   
6. Mrs. Contreras threw out her old coffee table and cleaned the carpet.
7. 
   
9. Taking the elevator to the roof, we hoped we could see the skyline and the bay.
10. 
    
12. Though Susan wasn't feeling well, she went to the store anyway and bought ice cream, pizza, and candy.
13. 
    
15. I let my neighbor borrow my phone because she said hers was tapped by the police.