Explanations:In English grammar, verbs are used to describe actions, occurrences, or states of being. Verbs can change their form to indicate different tenses, which help to specify when the action took place. The past tense is used to describe actions that have already happened and are completed. In the sentence "After Shelley pulled a muscle, her leg _____ for a week," the verb form must indicate that the action of the leg aching occurred in the past and is now completed.
Irregular verbs are verbs that do not follow the regular pattern of adding "-ed" to form the past tense. Instead, they have unique forms that must be memorized. The verb "ache" is an example of an irregular verb. Its past tense form is "ached," which is the correct form to use in this sentence.
Let's break down the sentence to understand why "ached" is the correct choice:
"After Shelley pulled a muscle, her leg ached for a week." The phrase "after Shelley pulled a muscle" sets the context for a past event. The verb "pulled" is in the past tense, indicating that the action of pulling the muscle happened in the past. The sentence then continues to describe the consequence of that action, which is the leg aching. Since the leg aching is a result of the past event, it must also be in the past tense. Therefore, "ached" is the correct form to use.
It is important to note that the other options are incorrect for the following reasons:
Option A, "aches," is the present tense form of the verb "ache." It would be used in a sentence like "Her leg aches when she walks," which describes a current state or a habitual action. Since the sentence is about a past event, "aches" is not appropriate.
Option C, "aching," is the present participle form of the verb "ache." It is used to describe an ongoing action in the present, such as in the sentence "Her leg is aching." Since the sentence is about a completed action in the past, "aching" is not the correct form.
Option D, "None of the above," is incorrect because one of the provided options (Option B) is indeed the correct past tense form of the verb "ache."
Understanding the correct use of past tense forms, especially for irregular verbs, is crucial for constructing grammatically correct sentences that accurately convey the timing of actions or events.