(Question)
Donald was not very good at math. He couldn't understand the teacher's explanations. Even when the teacher explained something a second time, Donald Still couldn't understand it. "Never mind." Donald told himse1f, "I'm quite good at other subjects. I'll cheat in the math exam to get a good grade, then I won't be in trouble. " "I'll sit next to the boy who does best in math," he thought, "and copy down this answers." The day of the exam came, and Donald sat next to Tommy, who was always at the top of the class in math. Donald carefully copied Tommy's answers onto his own exam paper. At the end the exam, the teacher collected the papers and graded them in time. Then she said, "well, boys and girls, I've decided to give a prize to the student who got the highest grade. It's difficult for me to decide who I'll give the prize to one of them." The students were surprised when they heard this. They said, "That's not fair. They got the same grade." "That's true." the teacher said, "However, Tommy's answer to Question 18 was 'I don't know' while Dona1d's was 'Neither do I ' ." The teacher decided to give the prize to _ . A) Tommy B) Donald C) both Tommy and Donald D) either Donald or Tommy
(Answer)
A

(Question)
Mr. Green has a small garden in front of his house. There are lots of flowers in it. But he has only a few trees. His neighbor Mr. Black has a garden, too. Mr. Black's garden is smaller than Mr. Green 's garden. He has fewer flowers than Mr Green but more trees. Mr. Brown is Mr. Green's another neighbour. Mr. Brown's garden is the smallest one of the three. He has the fewest flowers of them all, but the weeds in his garden are the tallest. There is always a lot of work to do in his garden, but Mr. Brown doesn't have enough time to work in his garden, so his garden is the worst. Mr. Green's garden is _ than Mr. Black's garden. A) better B) worse C) bigger D) smaller
(Answer)
C

(Question)
Have you ever heard of e-waste(electric waste,), which can be produced every day? How do you deal with your computers, MP4 players and mobile phones when they're broken or you want a new one? Most people just throw them away. With the development of electric industry, e-waste pollution has become a serious problem. According to the United Nations, in 2014, people around the world produced 41.8 million tons of e-waste and only recycled 6.5 million tons. The US was the biggest waster, producing 7.1 million tons. China came second, with 6 million tons. It's important to pay attention to e-waste. It can either be valuable or harmful , depending on how we deal with it. E-waste is a valuable urban mine . The value of the metals, like gold and silver in the waste around the world, is amazing. And the metals can be reused. But if people throw them away, the toxic chemicals can get into the earth or air, effecting the environment and people's health. Apple, for example, now recycle people's used products in China when they are buying new ones. The company will test and repair the used ones and sell them at lower prices. To help reduce e-waste, we can also take computers and phones to see if companies offer recycling programs. The following can become e-waste EXCEPT _ . A) computers B) mobile phones C) plastic bags D) MP4 players
(Answer)
C