Q: Read the following article and select the best answer. Article: Wisdom teeth are normally the last teeth to appear.This usually happens when people are in their late teen years or early twenties,in other words,when they are older and wiser. Wisdom teeth can grow into place normally and never cause a problem.But often there is not enough room for them in the mouth;they might crowd other teeth.Sometimes they even push sideways through the gums . An impacted wisdom tooth is one that fails to completely rise through the gums.Wisdom teeth that only partly break through can leave space for bacteria to enter around the teeth.Infection is a risk in these cases. Wisdom teeth that are not well lined and become impacted are often removed.The American Dental Association says removal is generally advised when wisdom teeth only partly break through the gums.Removal is also advised if there is a chance that wisdom teeth ate poorly lined.The best time to remove is before the teeth cause any problems or pain.Young adults are the best candidates for wisdom teeth removal. But why do we have wisdom teeth if we often need to get them removed?One theory has to do with our diets.Scientists say the diet of ancient humans probably required more chewing teeth.Life was probably a little rougher on the teeth back then,too.So it was good to have extras. Question: Wisdom teeth should be removed _ . - when they break through the gums - when they are below the gums - if they are not well lined or get impacted - if they take up enough room in the mouth
A: if they are not well lined or get impacted

Q: Read the following article and select the best answer. Article: It is exciting to visit different places. As you travel, you will see beautiful sceneries typical of the region. Besides, you can meet and make friends with people of different color1s and races. Finally, you can get to know the customs and living habits of the local people. Today people are so fond of travelling that tourism has become one of the fastest growing industries in most countries. The main reason why people travel is, perhaps, for pleasure. For example, having worked hard throughout the weekdays, people will find a widened trip to the nearby mountains or beaches for a relaxation. For another example, spending an annual holiday travelling abroad is an especially satisfying experience for those who do not have much of an opportunity to be away from their homelands. When people return from their travel, they will generally feel fresh and energetic, ready to work harder. Travelling is also one of the best means for learning. You may have read or heard about something but you can never get an accurate picture of it until you see it for yourself. _ . Furthermore, if you are a careful observer, you can learn much during your travel about the geography, biology, and history of the places you visit. No matter how well educated you are, there is always a lot for you to learn through travelling. The knowledge _ from travel, as you have found in your life, is no less valuable than that from any influential reference books. Question: By saying "Seeing is believing", the author means that _ - you cannot believe it until you see the real object by yourself - you will have a clear idea about something when you see it personally - you will know what has happened to something when you see it - you will have no doubt when you see something by yourself
A: you will have a clear idea about something when you see it personally

Q: Read the following article and select the best answer. Article: "Dutch" expressions heard in American English were first used in prefix = st1 /Englandin the 17thcentury. That was a time of fierce competition betweenEnglandandHolland. At that time, the British used "Dutch" as a word for something bad, or false. A Dutch agreement was one made between men who had drunk too much alcohol. Dutch leave was what a soldier took when he left his base without permission. Some of these old expressions are still used today with a little different meaning. Long ago, a Dutch treat was a dinner at which the invited guests were expected to pay for their own share of food and drink. Now, Dutch treat means that when friends go out to have fun, each person pays his own share. Another common expression heard a few years ago was "In Dutch". If someone told you that you were in Dutch, they mean that you were in trouble. Some of the Dutch expressions heard in American English have nothing to do with the Dutch people at all. In the seventeen hundreds, Germans who moved to theUnited Statesoften were called Dutch. During the American Civil War, supporters of the northern side in the central state ofMissouriwere called Dutch, because many of them were German settlers. President Theodore Roosevelt once noted that anything foreign and non-English was called Dutch. Question: If you want to tell your friend that he is in trouble, you can use " _ " - A Dutch - Go Dutch - In Dutch - Dutch leave
A: In Dutch

Q: Read the following article and select the best answer. Article: Has anyone been prepared for the possibility that unexpected poor visibility will stop the pilot from landing? If your pilot is forced to turn back only for his lack of passing a certain test, you will be certainly shocked. This very thing happened to the passengers on Flight BE1431 on Thursday. Just minutes before landing on Charles de Gaulle Airport , Paris, the pilot, a very experienced one, told his passengers, "Unfortunately I'm not qualified to land in Paris for the poor visibility. To do so a level II qualification is required, which I have not gained. We'll have to fly back." Then, you may guess how the passengers felt about their flight back to the starting airport. A spokeswoman said the pilot was really experienced with more than 30 years flying a number of different passenger aircraft types. "But he has recently transferred from flying aBQ300 to aBQ400, so hehas to regain his qualification for landing in such conditions as the thick fog he experienced this time," she said. "The pilot, therefore, quite correctly turned the aircraft back, a decision 100 percent accepted by the aviation officials in the company." One passenger said she had missed an appointment for an interview in prefix = st1 /Paris. "I might have had a nice chance to work inParis," she told the local newspaper. "The whole thing sounds hard to believe. If I had not been on the plane, I would take it as a funny story!" The British Civil Aviation Authority described the incident as one that was "quite unusual but probably not unheard of," because there are different classifications of aircraft with different qualifications for landing in different climatic conditions and when an aircraft is updated, the pilots have to get retrained, even though they have enough skills to do the job successfully. Poor pilot, it's not really his fault... Question: Which of the following is true? - It was the airline's fault to require pilots to update qualification., - The announcement made by the pilot seemed quite interesting. - Actually, the pilot had the ability of landing the plane safe. - The weather above the Airport was within the pilot's expectation.
A: Actually, the pilot had the ability of landing the plane safe.