Meaning: 'Realistic' means something that is practical and achievable, not overly ambitious or idealistic.

Wrong options:

• naturalistic: 'Naturalistic' refers to something that is based on nature or realism in art, which does not fit the context of setting achievable goals.
• along the way: 'Along the way' is a phrase that indicates a process or journey, but it does not describe the nature of the goals themselves.
• timely: 'Timely' is an adjective that refers to something done at the right time, which does not describe the goals in this context.
• frequent: 'Frequent' means occurring often, which does not relate to the quality of being achievable or practical in the context of goals.

Correct answer: in order to

Explanation: The phrase 'in order to' serves as a conjunction that introduces a purpose, fitting grammatically and contextually as it explains the intention behind achieving a high grade.

Meaning: 'In order to' is used to express the purpose of an action, indicating what needs to be done to achieve a specific goal.

Wrong options:

• naturalistic: 'Naturalistic' does not fit as it does not convey purpose and is unrelated to the context of achieving a grade.
• along the way: 'Along the way' indicates a process but does not express the purpose of achieving a high grade, making it contextually inappropriate.
• timely: 'Timely' refers to something done at the right time, which does not express purpose and is not suitable here.
• frequent: 'Frequent' describes something that happens often, which does not relate to the purpose of achieving a high grade.
• realistic: 'Realistic' describes the nature of goals but does not convey the purpose of actions needed to achieve a high grade.

Correct answer: timely

Explanation: The word 'timely' is an adjective that describes the noun 'action,' indicating that the action should be done at the right time. This fits grammatically and contextually as it emphasizes the importance of prompt feedback in the learning process.

Meaning: 'Timely' means occurring at a suitable or opportune time, which is crucial for effective learning and improvement.

Wrong options:

• naturalistic: 'Naturalistic' does not fit as it relates to nature or realism, which is irrelevant in the context of feedback actions.
• along the way: 'Along the way' describes a process but does not appropriately modify 'action' in this context.
• in order to: 'In order to' is a phrase that indicates purpose, but it does not describe the nature of the action itself, making it unsuitable here.
• frequent: 'Frequent' means occurring often, which does not convey the necessity of promptness in the context of feedback actions.
• realistic: 'Realistic' describes the nature of goals but does not apply to the timing of actions related to feedback.