Practice Activities: Punctuation

Ending Punctuation

Are ending punctuation marks used appropriately in these sentences? Explain why or why not. The sentences have been numbered to aid in your comments:

(1) One famous eighteenth-century Thoroughbred racehorse was named Potoooooooo, or Pot-8-Os! (2) He was a chestnut colt bred by Willoughby Bertie, 4th Earl of Abingdon, in 1773, and he was known for his defeat of some of the greatest racehorses of the time. (3) With a well-to-do background like this, where do you suppose his strange name came from.

(4) The horse once has a stable lad, who facetiously misspelled Potatoes. (5) Apparently, the owner thought the misspelling was funny enough to adopt it as the horse’s real name!


Identify the compounds in the following sentences. All compounds have been treated as open compounds. Correct any compounds that this is incorrect for:

  1. Have you ever seen someone with such a stereo typical appearance?
  2. This is all publicly available information.
  3. I bought a new yellow orange skirt last week.
  4. One half of participants failed to complete the study.


Read the following passage. Identify any errors with apostrophes. Type the corrected words in the text frame below:

Thanks to NASAs’ team of sniffers, led by George Aldrich, astronauts can breathe a little bit easier. Aldrich is the “chief sniffer” at the White Sands Test Facility in New Mexico. His’s job is to smell items before they can be flown in the space shuttle.

Aldrich explained that smells change in space and that once astronauts are up there, their stuck with whatever smells are onboard with them. In space, astronauts aren’t able to open the window for extra ventilation. He also said that its important not to introduce substances that will change the delicate balance of the climate of the International Space Station and the space shuttle.