Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 31 to 35. 

     It used to be that people would drink coffee or tea in the morning to pick them up and get them going for the day. Then cola drinks hit the market. With lots of caffeine and sugar, these beverages soon became the pick-me-up of choice for many adults and teenagers. Now drink companies are putting out so-called "energy drinks”. These beverages have the specific aim of giving tired consumers more energy. 

     One example of a popular energy drink is Red Bull. The company that puts out this beverage has stated in interviews that Red Bull is not a thirst quencher. Nor is it meant to be a fluid replacement drink for athletes.  Instead, the beverage is meant to revitalize a tired consumer's body and mind. In order to do this, the makers of Red Bull, and other energy drinks, typically add vitamins and certain chemicals to their beverages. The added chemicals are like chemicals that the body naturally produces for energy. The vitamins, chemicals, caffeine, and sugar found in these beverages all seem like a sure bet to give a person energy. 

          Health professionals are not so sure, though. For one thing, there is not enough evidence to show that all of the vitamins added to energy drinks actually raise a person's energy level. Another problem is that there are so many things in the beverages. Nobody knows for sure how all of the ingredients in energy drinks work together. Dr. Brent Bauer, one of the directors at the Mayo Clinic in the US, cautions people about believing all the claims energy drinks make. He says, “It is plausible if you put all these things together, you will get a good result." However, Dr. Bauer adds the mix of ingredients could also have a negative impact on the body. "We just don't know at this point,” he says. 

What is the passage mainly about? 

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 

Their son _______ his English recently because he attended a three-month English course.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. 

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30.

"Parents today want their kids to spend time on things that can bring them success, but (26) _______ we've stopped doing one thing that's actually been a proven predictor of success – and that's household chores," says Richard Rende, a developmental psychologist in Paradise Valley, Ariz, (27) _______ co-author of the forthcoming book "Raising Can-Do Kids.” Decades of studies show the benefits of chores - academically, emotionally, and even professionally. Giving children household chores at an early age helps to build (28) _______ lasting sense of mastery, responsibility and self-reliance, according to a research by Marty Rossmann, professor emeritus at the University of Minnesota. In 2002, Dr. Rossmann analyzed data from a longitudinal study (29) _______ followed 84 children across four periods in their lives - in preschool, around ages 10 and 15, and in their mid-20s. She found that young adults who began chores at ages 3 and 4 were more likely to have good relationships with family and friends, to achieve academic and early career success and to be self-sufficient, as (30) _______ with those who didn't have chores or who started them as teens. Chores also teach children how to be empathetic and responsive to others' needs, notes psychologist Richard Weissbourd of the Harvard Graduate School of Education. 

I'm not sure if my brother will ever get married because he hates the feeling of being _______.

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.