Read the following article and select the best answer. Article: Since the beginning of the year, smog has covered parts of North China. In January, Beijing saw only five days without smog. The rising PM 2.5 readings terrified many people, and some health experts said that whenever the smog gets serious, hospitals receive more patients suffering acute respiratory and heart diseases. Later, news of polluted underground water in some provinces scared people who wondered whether the water they drink is safe. So the need to emphasize environmental protection while developing the economy is heard everywhere. Smog especially is a common concern. Like a popular online post said, air may be the only thing that is equal for everyone, despite your income or vocation. People with higher incomes are able to drink only bottled spring water and eat only organic food by paying higher prices, but they breathe the same air as everyone else. At a meeting on Monday, many Representatives have expressed their concerns about the air quality, too. One talked about his experience in Beijing. "After taking a taxi from the capital airport to my hotel, which took about an hour, I washed my nose and found the inside of my nose was black. We should ask ourselves this question: Why do we want to develop? It's for living a better life. Dirty air is definitely not a better life," he said. China needs to develop its economy and invest in high-tech. Every Chinese wants a strong country. But without blue sky, clean water and safe food, the achievements in the economy will become meaningless. Space technologies are not to be developed for building a base on Mars so that one day all human beings can migrate to the red planet because _ have destroyed Earth. What the public wants is a strong and beautiful China. Former president Hu Jintao spoke at the 18th Party Congress last November saying that great efforts must be made to promote ecological progress and build a beautiful China. The words have shown the central government's resolution to address the environment issue. Question: Why smog has become a common concern? - Because people have to pay higher prices. - Because nobody can avoid it. - Because we have to develop industry. - Because a popular online-post discussed it.
Because nobody can avoid it.

Read the following article and select the best answer. Article: President Barack Obama and First Lady Michelle Obama ended their first trip to India on Monday. The First Couple set off on the ten-day tour of Asia on Friday. Obama's goals for the tour are to improve ties between the US and the region, and to promote economic growth and job creation. The President and his team will return to Washington, D.C. on November 14. The Obamas began their trip in Mumbai, India, the financial and economic center of the country, on November 6. There, they met with government officials, business leaders and school groups. Up first on the schedule was a visit to a memorial at the TajMahal Palace and Tower Hotel. Obama's second day in India was lighter than the first. The Presidential visit took place on Diwali, or the Festival of Lights. The five-day religious festival is celebrated each year by Hindus, Sikhs and others. The Obamas spent the holiday visiting with local schoolchildren. On Monday, Michelle Obama joined 15 Indian school girls on a field trip to a museum of Indian craft work. During the tour, the First Lady stressed to the students the importance of education. Most of the children on the trip are the first girls in their families to attend school. Mrs Obama also encouraged the young women to stay fit, telling them that she likes to exercise because "women have to stay strong". Early tomorrow, the Obamas will travel to Indonesia, the country in which the President spent four years as a boy. After that, they will fly to Seoul, South Korea, to attend the Group of Twenty, or G-20, economic summit. The conference brings together leaders from 20 wealthy and developing nations and the European Union. They meet twice a year to address challenges that affect the global economy. The final leg of the tour will be in Japan, where Obama will attend the Asia-Pacific Economic Cooperation summit. Question: During the field trip to a museum of Indian craft work, the First Lady _ . - asked why only the first girls could go to school - told the students the importance of craft work - explained why women must stay strong - encouraged the students to study hard
encouraged the students to study hard

Read the following article and select the best answer. Article: Mr. And Mrs. Bell are very forgetful . For example , Mr. Bell sometimes goes to his office for work on Sunday morning, for he thinks it is Monday. And Mrs. Bell sometimes forget to cook supper for the family. One summer they planned to fly to New York for their holidays. They got to the airport only ten minutes before the plane took off. So time was short. But suddenly Mrs. Bell said she must tell Alice, their daughter, not to forget to lock the front door when she went to school. As Alice was then at school, they couldn't tell her about it by telephone. So they hurried to the post office. Mrs. Bell wrote a short note to Alice while Mr. Bell bought a stamp and an envelope . Soon the note was ready. They put the stamp on the envelope in a hurry and dropped it in the letter box, but suddenly Mrs. Bell began to cry. The short note was still in her hand. She had put the plane ticket in the envelope. Question: When Mr. and Mrs. Bell got to the airport. _ - the plane had taken off - there was no ticket left - they heard form their daughter - the plane would take off in ten minutes
the plane would take off in ten minutes