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What is the writer's main aim in the passage?

Câu hỏi: Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer for each of the questions from 30 to 34.
The brain is the most amazing part of our body and despite all medical research nobody really understands everything about it. But just like our bodies, it needs to be cared for in ways that can be quite simple. Getting a good night's sleep, eating a balanced diet and taking deep breaths are all important methods of looking after both your body and your brain.
Many people think their brain will slow down with age and their memory will get worse as a result. The truth is, just like your body, you can also enhance your mind. I've found I can improve my memory by imagining what I need to remember. For example, if I'm going shopping and I need bread, milk and a birthday card for my brother, I imagine a 10 loaf of bread, a carton of milk with a cow on the front and a birthday card with a football on it.
The same kind of method can be used with important dates. If you have a picture in your mind of a particular event it's much easier to remember than just a number on a calendar.
Another way of improving your mind is to make sure you regularly visit new places and is to have new experiences. Personally I find learning Spanish is a great way to keep the brain working, but communication in any language is important. Having a conversation is so much better for your brain than staring at a computer screen or at other people talking on TV.
What is the writer's main aim in the passage?
A. to explain how the brain works
B. to talk about problems with the brain
C. to describe how clever she has become
D. to suggest the brain needs attention
Câu trả lời dựa vào thông tin "...it needs to be cared for ... I can improve my memory .. .Another way of improving your mind is to make..."
Đáp án D.
 

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