Read the following article and select the best answer. Article: Airtight plastic bags can help farmers protect their harvests without the use of harmful chemicals. These bags are designed to keep air out of crops in storage. Using them is a simple way to fight insects and keep crops fresh. Ten countries in West and Central Africa are involved in a project to improve the storage of cowpeas, also known as black-eyed peas. Farmers can lose much of the harvest to insects called bruchids , which grow from egg to adult in a few weeks and then lay forty to sixty eggs. They can destroy the whole harvest within months. Farmers can sell their crops immediately. But selling at harvest time means more competition and lower prices.Or they can use pesticides to kill the bugs. But a crop scientist Dieudonne Baributsa says, "They end up misusing or overusing the pesticide. In Nigeria, they have reported a lot of cases of death. They usually call cowpeas 'killer beans' in Nigeria." Mr. Baributsa is a researcher at Purdue University in Indiana, America. The project is called PICS---Purdue Improved Cowpea Storage. He says the storage bags are thick enough that any insects already in the cowpeas willdie from a lack of oxygen. The lack of air will also help prevent the growth of bacteria that can ruin the harvest. The bags cost about two dollars each. Mr. Baributsa says that is not much, especially if it means farmers can wait long enough to get a better price for their crops. The bags are produced locally. Donors currently support the project, but the groups involved are working to build a lasting market for the bags because donation for the project will not lastforever. A company based in the United States called GrainPro makes another kind of airtight bags. These are called SuperGrainbags. Phil Villers, the company's president, says storing a harvest safely not only helps farmers earn more money, but also reduces the amount of the harvest loss to insects, spoilage and mishandling. "What does not get wasted and eaten means it is possible to feed a hungry world," said Phil Villers. Question: What is the best title for this passage? - Simple bags save the harvest. - Plastic bags kill the insects. - Bruchids do harm to the harvest. - Pesticides threaten food safety..
Simple bags save the harvest.

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Read the following article and select the best answer. Article: Justin Bieber used to be an ordinary Canadian boy, but his life totally changed in 2008. With his great musical talent, this 17-year-old boy has become a superstar in the music industry. Justin Bieber was born in Straford, Ontario and was raised by his single mother. Bieber learned to play musical instruments when he was very young. In 2007,he took part in a local singing competition in his hometown, and he did it just for fun. He never took singing lessons before but surprisingly he placed second in the competition. Then,with the help of his mother, he uploaded videos of him singing on a website and they successfully attracted the attention of viewers. His videos got popular through word of mouth and some of them have received up to 10,000,000 views. Justin Bieber would have never gotten a career in the music business without his videos. Scooter Braun, a former marketing executive of So So Def Recordings, had watched Bieber's videos and he was impressed by the boy's talent. Braun then contracted Bieber and he flew the boy into Atlanta 7 months after the first video was posted. Bieber showed his talent in singing as well as his ability in playing musical instruments. He then got a record deal. In 2009,Justin Bieber released his first single "One Time" while he was recording the debut album .The single "One Time" tells a story about love. This song had success not only in Canada and the US, but also in the international market. Then he released his debut album "My World 2.0"in 2010 and the song "Baby" became the lead single. This album successfully entered the Top Ten Charts in seven countries. In June 2010, he started his first world tour in Hartford, Connecticut. One month later, he started recording his second album. Question: Justin Bieber's career in music began to take off when _ . - he met with Scooter Braun - he released his debut album - he won second place in a competition - his singing videos were uploaded to a website
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his singing videos were uploaded to a website

Ques: Read the following article and select the best answer. Article: If you are not comfortable with school learning, there is another option for you--cyberschool. Cyberschool can also provide a comprehensive teaching service that offers academic guidance and assistance. This is in order to promote the learning process and create a formal, wellstructured environment for learning to take place. The center for Education Reform says the United States has 67 public "cyberschools" and that is about twice as many as two years ago. The money for students to attend a cyberschool comes from the governments of the states where they live. Some educators say cyberschools receive money that should support traditional public schools. They also say it is difficult to know if students are learning well. Other educators praise this new form of education for letting students work at their own speed. These people say cyberschools help students who were unhappy or unsuccessful in traditional schools. They say learning at home by computer ends long bus rides for children who live far from school. Whatever the judgment of cyberschools, they are getting more and more popular. Children get free equipment for their online education. This includes a computer, a printer, books and technical services. Parents and students talk with teachers by telephone or by sending emails through their computers when necessary. Even though cyberschools are therefore not technically a school, mostly they offer a fully complete and comprehensive program that covers a full school day to children up to Grade 9, after which schooling is no longer mandatory . Question: Cyberschools are getting popular because . - they are less expensive for students - their students can work at their own speed - their graduates are more successful in society - they serve students in a wider age range
Ans: their students can work at their own speed

Read the following article and select the best answer. Article: "Colour" and "color","favourite" and "favorite"... Have you ever wondered why Americans spell those words without a "u"? Is it because they are lazy? Of course not. In fact,the difference in spelling was created by Noah Webster (1758-1843). He is a teacher who reformed English to make American identity stronger. Linguists celebrated his 250th birthday on October 16. After the Revolutionary War (1775~ 1783),Webster believed that Americans should have their own dictionary,rather than rely on British versions . He dropped the British "u" in some words. And he changed "centre" into "center" for children to learn English by spelling words more like they sounded. Webster wasn't shy about expressing his opinions. In defining preposterous (unreasonable),he wrote: "A republican government in the hands of females is preposterous." Webster spent 28 years on the project before completing the 70,000-word dictionary in 1828 with his American-style spellings. He also added local words. His dictionary was widely used in schools. Linguists believed it helped a new nation achieve unity and cultural independence at a time when most were focused on political freedom. "He was the shaper of our language and the shaper of American identity,"said Joshua Kendall,who is working on a biography about Webster. "He at last bonded us through our language." Question: Why did Noah Webster create these differences in his dictionary? - Because he wanted to make English simple and easy. - Because he wanted to show that the USA is stronger than the UK. - Because he wanted to achieve political freedom. - Because he wanted American English to have its own characteristics.
Because he wanted American English to have its own characteristics.