Question: *Question*
Read the following article and select the best answer. Article: Doctors say obesity,also known as severe overweight,is a complex condition.A doctor may advise medical interventions  in addition to changes in behavior.But experts say the more successful weightloss plans include a wellbalanced diet and exercise. People who want to avoid weight gain have to balance the number of calories they eat with the number of calories they use.To lose weight,you can reduce the number of calories you take in,or increase the number you use,or both.Experts at the National Institutes of Health say to lose weight,a person should do some moderate or intensive physical exercise most days of the week.This could include fast walking,sports or strength training. A recent study looked at four of the most popular dieting plans in the United States.Researchers at Stanford University studied more than three hundred overweight women,mostly in their thirties or forties.Each woman went on one of the four plans:Atkins,The Zone,Ornish or LEARN.The women attended diet classes and received written information about the food plans.At the end of a year,the women on the Atkins diet had lost the most,more than four and a half kilograms on average. Christopher Gardner led the study,reported in the Journal of the American Medical Association. He said the Atkins diet may be more successful because of its simple message to lower the intake of sugar.Also,he said the advice to increase protein in the diet leads to more satisfying meals. But last week,another report suggested that only a small minority of people have longterm success in dieting.Researchers at the University of California found that most dieters regained their lost weight within five years.And often they gained back even more.But those who kept the weight off generally were the ones who exercised. Question: You are most likely to gain too much weight if  _  . - you eat the same number of calories as the number you use - you take in less calories than the number you use - you take in more calories than the number you use - you take exercise regularly on the weekdays
**Answer**
you take in more calories than the number you use

*Question*
Read the following article and select the best answer. Article: There are various aspects that go into making a successful school, and success can be measured in various ways. Often, the teachers are praised for a school's success and blamed for its failure. Yet, in order for a school to be effective, it must be a place where teaching and learning can easily take place, and that requires the hard work of more than just educators. Students must take learning into their own hands and feel as if what they are doing is as important as it actually is. This can only be done with the cooperation of every adult that is involved in the students' life. Some of these individuals often go unnoticed, yet the role they play in the students' lives is immeasurable. In the school, administrative assistants greet students at the start of the day and answer a large quantity of questions. When an assistant remembers a student's name or even something special about that student, it communicates to him that he is cared for. The assistant can also give that extra encouragement for a student to make better choices, especially when they are visiting the principal's office. Meanwhile, though cafeteria workers have a short space of time to interact with students, they can make a big difference as well. Beyond meeting nutritional needs, cafeteria workers may also on occasion meet the emotional needs of the students they serve. Students benefit from positive interaction with adults, and cafeteria workers may give that extra bit of encouragement that a child needs. Custodians   are usually underappreciated for what they offer to schools. They have to be knowledgeable about everything from cleaning to fixing the most intricate   tools. They get to school early in the morning before teachers arrive and lock up late at night after the last student has left from the after-school event. They also make sure teachers are equipped with the necessary items and prepare the rooms so that they are ready for learning. A great custodian also gives that kind word or extra smile to that student who needs it most. Question: The purpose of the passage is to   _  . - emphasize the role teachers play in a school - highlight the contributions of other staff at school besides teachers. - tell us who make the greatest contributions to a school - explain what contributes to the success of a student
**Answer**
highlight the contributions of other staff at school besides teachers.

*Question*
Read the following article and select the best answer. Article: Sales of electric bicycles, or e-bikes, a hot item in consumer green tech, are expected to grow by more than 50% in North America during 2013. Actor William Shatner, who is no stranger to futuristic tech, recently purchased two e-bikes for him and his wife.  I've been shopping for an e-bike now for a few weeks, and I've had my eye on the folding electric bike. I've had folding bikes in the past and love the convenience of being able to throw my bike into my car. The e -bike market is ready to go mainstream in the U.S. The price for e-bikes has come down greatly in recent months. At one time, most e-bikes with good components and proper weight were in the $3,000range. Now you can find reasonable quality e-bikes in the $1,000range. With gas prices at all-time highs, e-bikes are an attractive, low-cost option to gas efficient vehicles. E-bike owners are finding that they are great for commuting to work, as  traditional bikes can be a problem with office dress and sweat. People who use e-bikes range from commuters to casual cyclers who like a little help with hills and wind,to those who decided to save money on buying a motor bike.These are not for the serious road cycler or professional mountain biker. If you're considering all e--bike, it pays to do some research first.Cheaper e-bikes are going to be heavier and have less battery--power.Higher priced bikes will be made from lighter materials and have better batteries. Another consideration is local motor vehicle laws.For example,according to US federal law,as long as your electric bike is under 750 watts and does not go over 20 MPH then it is a bicycle and not a motor vehicle.Most consumer e--bikes in the $1,000 range don't fit the motorized vehicle description. Question: What is the best title for this passage? - E--bike sales to shift into mainstream in 20l3 - E-bikes,the future way of transportation - E--bikes Vs gas vehicles - E--bikes,actors' first choice
**Answer**

Answer: E--bike sales to shift into mainstream in 20l3