The issue in the underlined portion of the sentence is the use of the verb form "existing," which is a participle and not an actual verb. The word needs to be changed into a form that functions as a verb. "Conflicting desires exist in every single person" is the correct choice among the answers.

The introductory phrase that is highlighted in the sentence describes the condition under which the woman reacted to her son's gift. Therefore, the verb form needs to describe a condition or way of being. Such a form is the present participle, which shows action currently being taken, and the correct answer is "Holding back tears."

The underlined portion of the sentence has a problem with the verb form "eating." The gerund form, used here, is inappropriate, as it is actually a verb that functions as a noun; therefore, the correct answer is "did not want to eat for a few hours."

The use of the verb "confused" creates many different problems in the sentence. By leading off a phrase, the word needs to be in a form that can link the phrase to the first part of the sentence. "Confusing the troops," which uses a past participle to describe the effect of the orders, is the correct answer choice.

The verb form used in the underlined section is completely wrong. The use of the present participle "seeing" confuses the meaning of the sentence and is unclear. The verb "went" needs a complement form, such as an infinitive. Therefore, the correct answer is "went to see."

The underlined portion of the senetence awkwardly separates out the seeing of ghosts from the rest of the sentence. The correct answer needs to smoothly place what people have done with those people as a subject. "Them see ghosts," is the best choice among the answer choices.

This is a sentence fragment because it is lacking a verb. Only "their weather forecasts are wrong" adds a verb in the right tense.

Let's break down the originaly sentence: we have "Those who enjoy that author's writing," a subject; "being those who tend not to read traditional horror," an interrupting phrase providing further information about the subject; and "preferring instead the comforts of peaceful stories," a participial phrase again describing the subject. This sentence doesn't contain an actual verb; it is one long description of "those." To correct the sentence's error, we need to introduce a verb, either by adding in a form of "to be" before one of the participles to make it a verb, or changing one of the participles to a different verb form. The only answer choice that corrects the sentence replaces the participle "being those who tend not to read" with the verb "tend not to read." The complete and corrected sentence thus reads, "Those who enjoy that author's writing are those who tend not to read traditional horror, preferring instead the comforts of peaceful stories."

The non-underlined, and therefore correct, verb in the sentence is "was," which is in the past tense. Therefore, the verb in the underlined portion of the sentence must also be in the past tense. The only answer choice that is both a correct grammatical form and in the past tense is "than it had appeared."

The verb construction "had seeing" is an incorrect form, with the participle "seeing" needing some form of the word "be" to be made correct. The form needs to be changed to something more appropriate. "Had seen," featuring the past tense form of "see," is the correct answer choice.