Article: The tradition of birthday parties started a long time ago. There are some traditions that you can find almost anywhere, anytime, such as sending birthday cards, blowing out the candles on a birthday cake and singing the 'Happy Birthday' song. Others are only found for certain ages and in certain countries. In China, on a child's second birthday, family members put many things on the floor around the child. According to Chinese tradition, the first thing that the child picks up tells you what profession the child will choose later in life. For Japanese children, the third, fifth and seventh birthdays are especially important. At this age, there is a special celebrationShichi-Go-San (seven, five, three in Japanese) when children go to the temple wearing a newkimono . Thepriest gives them special sweets, and the parents usually organize a party for their friends in their home. In Argentina, Mexico and several other Latin American countries, girls have a special birthday celebration when they reach the age of fifteen. After a special ceremony , the girls dance a waltz with their father and other boys. Eighteen is the traditional "coming of age"-- the age when (in many countries) you have the right tovote , join the army and (in Britain) drink alcohol or buy a house. In many English-speaking countries, a twenty-first birthday cake often has a key on top, or the cake itself is sometimes in the shape of a key. The key means that the young person is now old enough to leave and enter the family home at any time they want to! Question: In many countries you can _ when you reach the age of eighteen. Yes or no, is the answer "join the army"?
No

Article: The biggest danger facing airlines nowadays may not be a terrorist with a gun, but the man with portable computer in business class. In the last 16 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference . The source of this interference remains not proved, but increasingly, experts are pointing the blame at portable electronic devices such as portable computers, radio and cassette players and mobile telephones. RTC.A. an organization which advises the aviation ( )industry, has suggested that all airlines ban such devices from being used during "critical" stages of flight particularly take-off and landing. Some experts have gone further, calling for a total ban during all flights. Currently , rules on using these devices are left up to individual airlines. And although some air- lines prevent passengers from using such equipment during take-off and landing, most are unwilling to carry out a total ban, given that many passengers want to work during flight. The difficulty is predicting how electromagnetic fields might affect an aircraft's computers. Experts know that portable devices send out radiation which affects those wavelengths which aircraft use for navigation and communication. But, because they have not been able to reproduce these effects in a laboratory, they have no way of knowing whether the interference might be dangerous or not. The fact that aircraft may be fragile to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment. As worrying,though, is the passenger who can 't hear the instructions to turn off his radio because the music's too loud. Question: The passage is mainly about _ . Yes or no, is the answer "a possible cause of aircraft incidents"?
No

Article: When people search online, they leave a trail that remains stored on the central computers of firms such as Google, Yahoo and Microsoft. Analyzing what we're looking for on the Web can offer a remarkable understanding of our anxieties and enthusiasms. UK writer John Battelle wrote on his blog, "This can tell us extraordinary things about who we are and what we want as a culture." Google's experimental service Google Trends, for example, compares the numbers of people searching for different words and phrases from 2004 to the present. According to these graphs, sometimes people's interests are driven obviously by the latest news: when the Spice Girls, a pop group, announce a reunion, there's an immediate rush to find out more about them. Other results are strikingly seasonal: people go shopping online for coats in winter and sandals in summer. The most fascinating possibility is that search data might help predict behavior. Perhaps we search for a political candidate's name when we are thinking about voting for him or her. This information could clearly be useful to a marketer - it's already how Google decides which ads to show on its search results pages - or to a political campaign manager. Marissa Mayer, a Google vice-president, argues that Google Trends correctly "predicted" George Bush's victory over John Kerry in the 2004 election. The graph clearly shows that Bush continued his lead over Kerry, in terms of search volumes, even when polls suggested _ . However, that's not always the case. For instance, the same approach predicted Hillary Clinton would beat Barack Obama in the race for the Democratic presidential nomination in 2008 turned out to be wrong in the end. Question: According to the passage, Google are able to see the trails of the people when they are _ . Yes or no, is the answer "using its search engine"?
No

Article: Every day we go to school and listen to teachers,and the teacher will ask us some questions.Sometimes,the classmates will ask your opinions of the work of the class.When you are telling others in the class what you have found out about these topics,remember that they must be able to hear what you are saying.You are not taking part in a family conversation or having a chat with friendsyou are in a situation where a large group of people will remain silent,waiting to hear what you have to say.You must speak so that they can hear you loudly enough and clearly enough but without trying to shout or appearing to force yourself. Remember,too,that it is the same if you are called to an interview whether it is with a professor of your school or a government official who might meet you.The person you are seeing will try to put you at your ease ordinary conversation but the situation is somewhat different from that of an ordinary conversation.You must take special care that you can be heard. Question: The main idea of this passage is . Yes or no, is the answer "that we must use different ways at different situations"?
Yes