Final answer:
To complete the sentence meaningfully, the word 'invincible' is the correct choice, indicating that Harry, despite being good at chess, is not unbeatable. 'Invincible' is an adjective that means incapable of being conquered, which fits the context of the sentence best.
Step-by-step explanation:
The question "Harry may be a good chess player, but he's not __________." is asking to fill in the blank with the most appropriate word that completes the sentence meaningfully. By examining the options given, we can see that they are a mix of verbs and adjectives.
Let's analyze the options:
- A. Petulant - This word means showing sudden, impatient irritation, especially over some trifling annoyance.
- B. Evince - This verb means to show clearly; make evident or manifest; prove.
- C. Invincible - This adjective means incapable of being conquered, defeated, or subdued.
- D. Protracted - This adjective means to draw out or lengthen, especially in time; extend the duration of; prolong.
- E. Retract - This verb means to draw back or in.
The most suitable word to complete the sentence is 'invincible', which suggests that Harry, while being a good chess player, is not unbeatable. None of the other words logically fit into the context of the sentence.