Read the following article and select the best answer. Article: Two good friends, Sam and Jason, had a car accident. The next morning, Sam woke up but Jason was still unconscious . When Dr. Smith saw Sam awake, he smiled at him and asked, "How are you feeling today?" Sam smiled back and said, "Wonderful! Promise me you won't tell Jason anything." Dr. Smith was moved by Sam's words and said, "You are a very brave man. You know I won't do that. Trust me." Months later Jason recovered. He stopped hanging out with(...)Sam. He felt unhappy to spend time with a disabled person like Sam. Sam was lonely and heartbroken. One day Sam died in despair . When Jason was on his burial , Dr. Smith gave Sam's letter to him. The letter read, "Dear Jason, I have kept my promise to give you my eyes if anything had happened to them. Now there is nothing more that I can do. You will see through my eyes that you will always be my best friend ... Sam." When he finished reading, Dr. Smith added, "I had promised Sam to keep it a secret." Jason stood there with tears on his face. Question: Why did Jason stop hanging out with Sam? - He recovered but still couldn't move freely. - He felt upset to be with a disabled man like Sam. - He just found another friend. - He didn't know what had happened to Sam.
He felt upset to be with a disabled man like Sam.

(Question)
Read the following article and select the best answer. Article: Skipping classes, particularly big lectures where an absence is likely to go undetected, is a tradition among college undergraduates. These days, however, some professors say they're seeing more _ , as students make the most of new technologies as learning aids. Americ Azevedo taught an "Introduction to Computers" at the University of California, Berkeley, US last semester. By visiting the course's website, the 200 enrolled students could download audio recordings or watch digital videos of the lectures, as well as read the instructor's detailed lecture notes. But there was one big problem: So many of the undergraduates relied on the technology that at times only 20 or so actually showed up for class. Doug Suda, 19, a student in Azevedo's class last semester, said he skipped about three-quarter of the lectures. It's largely because he was busy with an off-campus job and was taking the course to fulfill a business major requirement. At the end of the term, Suda prepared hurriedly for the final exam by watching videos of about 15 lectures over three days. "If I hadn't that... I would probably fail the class," said Suda, who instead received a B-plus. Despite the concerns about absenteeism, schools are increasingly experimenting with ways to let students watch or listen to lectures on their computers or digital music players, like iPods. Last month, Harvard Medical School began "Podcasting" lectures. Students can download them into digital musical players, and study while they, say, go for a walk. As many academics accept the electronic innovation, others are pushing back. To encourage attendance, they are applying low-tech tactics, like giving more surprising quizzes or cutting back their online offerings. Lee Chanian, a UCLA economics professor, says "too much technology leads to passive learning environment and encourage more absenteeism". He now puts fewer lecture materials online, and provides extensive notes only for the most complicated topics. Question: At times only 20 or so undergraduates showed up for Americ Azevedo's class because _ . - so many undergraduates relied on digital learning aids - so many undergraduates have off-campus jobs. - his lectures were boring - the exam was easy to pass
(Answer)
so many undergraduates relied on digital learning aids

Ques: Read the following article and select the best answer. Article: The vitamins necessary for a healthy body are normally supplied by a good mixed diet, including a variety of fruits and green vegetables. It is only when people try to live on a very _ diet, say that when trying to lose weight, that it is necessary to make special provisions to supply the missing vitamins. An example of the dangers of a restricted diet may be seen in the disease known as "beri-beri", which used to make large numbers of Eastern people who lived mainly on rice suffer. In the early years of last century, a Dutch scientist named Eijkman was trying to discover the cause of beri-beri. At first he thought it was transmitted by a germ . He was working in a Japanese hospital, where the patients were fed on polished rice which had had the outer coverings removed from the grain, it was thought this would be easier for weak and sick people to digest. Eijkman thought his germ theory was proved when he noticed the chickens in the hospital yard, which were fed on remains from the patients' plates, were also showing signs of the disease. He then tried to separate the germ, which he thought was causing the disease, but his experiments were interrupted by a hospital official, who ordered that the rice without coverings, even though left over by the patients, was too good for chickens. It should be recooked for the patients, and the chickens should be fed on cheap, rough rice with the outer coverings still on the grain. Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating unmilled rice somehow prevented or cured beri-beri--even that a lack of some ingredient in the coverings may be the cause of the disease. Indeed this was the case. The element needed to prevent beri-beri was shortly afterwards separated from rice coverings and is now known as vitamin B. The milled rice, though more expensive, was in fact causing the disease the hospital was trying to cure. Nowadays, this terrible disease is much less common thanks to our knowledge of vitamins. Question: The ingredient missing from milled rice _ - was vitamin B - did not affect the chickens - did not result in beri-beri - was named the Eijkman vitamin
Ans: was vitamin B

Read the following article and select the best answer. Article: In prefix = st1 /America, drivers' education is part of high school. Every student in his or her second year of high school is required to take a course in drivers' education. However, unlike other courses, it isn't given during the regular school year. Instead, it is a summer course. The course is divided into two parts: class time for learning the laws and regulations, and driving time for practice. The students study the basic traffic laws they must know to pass the written driving test, which is given to anyone who wants to get a driver's license. Driving time is a chance for the students to sit behind the steering wheel and practice all kinds of skills that are required to drive a car. Each student is required to drive for a total of six hours. The students are divided into groups of four. The students and the instructor go out driving for two hours. Thus, each student gets half an hour of driving time per outing. The instructor and the "driver" sit in the front seats and the other three students sit in the back. The cars for drivers' education are different from other ears. In this kind of car there are two sets of brakes, one on the driver's side and the other on the instructor; s side. Thus, if the student driver runs into difficulties, the instructor can take over. This kind of car also has another special feature. On the rear window of the car is a sign that reads: STUDENT DRIVER. That lets nearby drivers know that they should be more careful because the student driver isn't very experienced. After the student has passed the drivers' education course and reached the proper age to drive, they can go to a designated state office to take the driving test, which is made up of an eye examination, a written test, and a road test. The student must pass all the three tests in order to get a driver's license. If the student does well in the drivers' education class, he or she will have no problem passing the test with flying color1s and getting licensed. Question: In the last sentence, "with flying color1s" means - happily - successfully - color1fully - quickly
successfully