An important exam It was two o’clock in the morning when I heard a knock at the door. It was my sister. She was very nervous, because she would have an exam in the same day. She had wanted my help, because she has many doubts about Math. She was studying a lot, but still has many doubts. This was an important exam because it was a selection for a new job, and she was needing pass in the test. It was a company of her dreams. An environmental company. She came into my house and started to study together. I have explained to her about some points of math, then she has understood all. In another day, she makes the exam and pass it. She was very happy!