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2 năm trước
Rút gọn biểu thức sau ($\frac{2+\sqrt[]{x} }{x+2\sqrt[]{x} +1 }$ - $\frac{\sqrt[]{x} - 2 }{x-1}$ )($\frac{x\sqrt[]{x} +x - \sqrt[]{x} -1 }{\sqrt[]{x} }$ ) (Với x>0)
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Đọc và khoanh đúng Having a best friend to consider in can bring a positive effect on our emotional healthy. An evening out with the closest friend may be the best guarantee of a good time. In fact, our best friend can prevent us from developing serious psychological problems such as depression and anxiety. Best fiendships evolvest with time- we cannot go out and pick our best friend. We become friends with people who share common interests- at school or through hobbies, for example. Best friends have usually know each other for years and stuck together through good and bad times. If you haven't got one, perhaps you are being too distant from people, or for using too much on your work. 1. A best friend can_____ A. Give us a healthy life B. Go out with us in the evening C. Spend much time finding D. Share joy and sadness with us 2. Close friends need to_____ A. Study at the same school B. Have the same interests C. Pursue the same hobbies D. Spend time together 3. According to the passage,___ A. It takes a lot of time to make close friendships B. We can go out and choose a good friendships C. Best friends have good and bad times D. It's very difficult to make lasting friendships 4. The word' one' in the last paragraph refers to A.good time. B.bad time. C.friendship D. A close friend 5. Which of the following sentences is not mentioned? A. We often have satisfaction being with a close friend B. The times of close friendship will never be broken C. An unsociable person may not have a close friend D. Friendships need time to develop

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