Read the following article and select the best answer. Article: For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships traveling through space, on the chance that someone may be receptive to such messages. Scientists are using powerful radio telescopes to listen to signals from about 1, 000 stars, all within 100 light years of earth. In addition, they will scan the entire sky to "listen" for radio messages from more distant stars. Using a computer, they will be able to _ more than eight channels at one time. Scientists are looking for any signal they stands out from the background noise. Of the 200 billion stars in the Milky Way galaxy, scientists find that five percent are like our sun. Perhaps half of them have a planet like earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution of life. Based on the inhabitable(that can be lived in)planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life. However, many scientists wonder whether intelligent life exists on other planets. Some believe that twenty years of searching without any intelligible messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely. Other scientists believe that our search hasn't been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family is only about five billion years old, our galaxy is about 20 billion years old. In that time, some scientists think it is likely that civilization much more advanced than ours have developed. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking.[ Question: According to the passage, how many planets in our galaxy might be inhabitable? - 5 billion. - 10 billion. - 15 billion. - 200 billion
5 billion.

Read the following article and select the best answer. Article: There are some strong-minded people that are able to stop smoking today and be free from the addiction the next day. However, some smokers may have to seek help from medication in order to kick the habit. What medication actually does is to reduce the wish to smoke. Some of the medication must be taken with a doctor's guidance. The five most common medications to stop smoking are Bupropion SR, nicotine gum, nicotine inhalers, nicotine nasal spray and nicotine patches. People can buy nicotine gum and nicotine patches in chemists. However, the other medications require a prescription. Zyban tablets have been found to be highly effective in curing people of smoking addiction. The tablet needs to be taken whole, without crushing it, as crushing can lead to side effects. It can be bought on the prescription of a doctor. Nicotine patches are filled with nicotine and they are applied to the skin. The skin takes in the nicotine and carries it to the blood stream. The amount of nicotine in these patches is quite limited, not enough to lead to addiction. But you shouldn't take them for dinner. In fact, millions of people have benefited from these nicotine patches. Nicotine gum is supposed to be a safer choice. It is used in such a way that it comes into contact with the blood vessels in the mouth and then releases the nicotine. The nicotine should not go through the stomach; otherwise, it may cause certain side effects. These different types of medications have to be taken quite carefully. Do ask your doctor before taking any of these. Question: Which of the following medicines can be bought without a prescription? - Zyban tablets. - Nicotine patches. - Nicotine inhalers. - Nicotine nasal spray.
Nicotine patches.

Q: Read the following article and select the best answer. Article: Full of beauty, happiness and a healthy love of life, the Bulgarian festivals and customs date back to old time when man tried to live in peace with nature. The merriest and richest festivals are Christmas and the New Year, when the socalled "sourvakari" makes the round of house with wishes for health and wealth. Other main festivals include "ladouvane" -- a holiday for young girls on New Year's Day or Midsummer Day (24th June), Shrovetide and Mummers' Games which mark the start of spring, and "lazrouvane" -- a traditional festival for love and family, health and richness.And among them, the widely popular and typical Bulgarian customs and festivals are "martenitsas" and rosepicking. Every year on March 1st, the Bulgarians give each other "martenitsas" -- a small doll made of white and red strings, a symbol of the beginning of spring, health and happiness. In late May and early June every year, the rosepicking season starts in the Valley of Roses which is between the Balkan Range and the Sredna Gora Mountains. Rosepicking starts at dawn, before sunrise and before the pleasant smell of the rose has disappeared. The Bulgarian rose produces 70 percent of the world's rose oil which is used by the very wellknown perfume company as a basic element of its products. This is the time of the Festival of Roses, celebrated with carnivals, happy activities, folk songs and dances in Karlovo and Kazanluk on the first Sunday in June. Question: The author of this passage intends to _ . - let us know some knowledge of Bulgarian culture - tell us the differences between customs and festivals - explain the connection between customs and industry - find the origin of the Bulgarian customs
A: let us know some knowledge of Bulgarian culture

Read the following article and select the best answer. Article: Night after night, she came to tuck me in , even long after my childhood years. Following her longstanding custom, she'd lean down and push my long hair out of the way, then kiss my forehead. I don't remember when it first started annoying me -- her hands pushing my hair that way. But it did annoy me, for they felt work-worn and rough against my young skin. Finally, one night, I shouted at her: "Don't do that anymore -- your hands are too rough!" She didn't say anything in reply. But never again did my mother close out my day with that familiar expression of her love. Lying awake long afterward, my words rang in my mind. But pride overwhelmed my conscience, and I didn't tell her I was sorry. Time after time, with the passing years, my thoughts returned to that night. I missed my mother's hands, missed her goodnight kiss upon my forehead. Sometimes the incident seemed very close, sometimes far away. But always it appeared in the back of my mind. Well, the years have passed, and I'm not a little girl any more. Mom is in her mid-seventies, and those hands I once thought to be so rough are still doing things for me and my family. She's been our doctor, reaching for medicine to calm a young girl's stomach or ease the pain of a boy's injured knee. She cooks the best fried chicken in the world...gets stains out of blue jeans like I never could...and still insists on dishing out ice cream at any hour of the day or night. Through the years, my mother's hands have put in countless hours of toil, and most of hers were before automatic washers! Now, my own children are grown and gone. Mom no longer has Dad, and on special occasions, I find myself drawn next door to spend the night with her. So it was that late on Thanksgiving Eve, as I drifted into sleep in the bedroom of my youth, a familiar hand hesitantly stole across my face to brush the hair from my forehead. Then a kiss, ever so gently, touched my brow. In my memory, for the thousandth time, I recalled the night my surly young voice complained: "Don't do that any... Question: We can learn from the passage that _ . - The author lived separately from her mother - The author's father has passed away - The author alone took care of her children - The author's mother never kissed her again since that night
The author's father has passed away