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Commas and Apostrophes Exercises

A. If the following sentences are correctly punctuated with introductory commas, mark a C on the line to the left of the sentence. If there is an error, put an X on the line and circle the error. Do you know why each sentence is correct or incorrect? ____ 1. As the boat turned about a dozen dolphins began to follow it. ____ 2. Since we moved into town, our fuel bill has tripled. ____ 3. Having chosen nursing as a career Susan enrolled in many science courses. ____ 4. Usually, I have time to eat breakfast.

____ 5. From outside the twelve-mile fishing limits off the coast of Maine, a strange phenomenon has been reported.

Each of the following sentences needs either a comma or a semicolon. Put in the necessary punctuation. 1. Many companies make sugar-free soft drinks, which are flavored by synthetic chemicals the drinks usually contain only one or two calories per serving. 2. Mr. Leyland played the viola professionally for many years and he now conducts a community orchestra. 3. The crab grass was flourishing but the rest of the lawn, unfortunately, was dying. 4. The hill was covered with wildflowers it was a beautiful sight. 5. As I turned around, I heard a loud thump for the cat had upset the goldfish bowl.

Identify the nonessential words, phrases, or clauses in the following sentences and add the appropriate punctuation. 1. Patterson Tower the recently completed office building is a monument to concrete ugliness. 2. The movie that I wanted to see is no longer playing.

3. Each person who enters the contest must send in two box tops. 4. John decided nonetheless not to buy the car.
5. The Mississippi River which once flowed north into Hudson Bay flows south into the Gulf of Mexico.

Punctuate the following sentences with apostrophes according to the rules for using the apostrophe. 1. Whos the partys candidate for vice president this year?
2. The fox had its right foreleg caught securely in the traps jaws. 3. Our...

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