1. Use of gerunds: The answer uses gerunds ("doing household chores," "watching TV," "chatting with friends online") to talk about activities, which is natural and correct in spoken English.
2. Use of preference structure: The phrase "I’d rather spend my free time..." correctly uses the 'would rather' structure to express preference.
3. Use of present simple tense: The answer uses present simple ("I really hate," "I usually leave") to describe regular habits and dislikes, which fits the question context.