Writing Instructions Directions for "Identifying Sentence Error" Questions The following sentences may contain errors in grammar, usage, diction, or idiom. Some of the sentences are correct. No sentence contains more than one error. If the sentence contains an error, it is underlined and lettered. The parts that are not underlined are correct. If there is an error, select the part that must be changed to correct the sentence. If there is no error, choose (E).