1. Relative clause: "such as a house or a car" is used to give examples of major purchases, showing the ability to expand on ideas clearly.
2. Noun phrases: Phrases like "major purchases," "significant investments," and "careful financial planning" demonstrate the use of complex noun phrases to convey specific ideas.
3. Present simple tense: The answer consistently uses the present simple tense ("people save," "require," "can afford") to talk about general habits and facts, which is appropriate for this type of question.
4. Conditional structure: "By saving up, they can afford these items without relying on loans or credit" uses a conditional structure to explain the benefit of saving, adding depth to the explanation.