Does the following sentence have correct spelling? There were alot of odd occurrences on Halloween.

Which of the following is the proofreader's mark to indicate where a comma should be inserted?

True or false? CMS treats scientific bibliographic citations differently than literature citations.

A circle with a period inside, indicates that the writer should:

Which of the following is the proofreader's mark to indicate when a proofreader should flush something right?

I called my mentor for some advise. Which word in this sentence is spelled incorrectly?

Which of the following sentences contains an error in number usage, style, or consistency?

Which of the entries below does not follow best practice for indexing titles of publications?

Carefully read the following lines that together form a passage and select the line that contains an error in punctuation.

Which of the following represents a correct bibliographic entry?

Read the following passage and select the line that contains an error in grammar or usage.