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I'm taking a test and have to guess the right answer to the question after the article. Article: Passage 3 A smile will tell people around you that you are a kind and friendly person. However, many people don't smile because they think they have ugly teeth. For example, one of my classmates, Mike, doesn't have very nice teeth, so that is why he seldom opens his mouth. He even says that he has lost confidence because of his teeth. So it is very important for us to look after our teeth. In fact, a lot of people have this problem. Some people inherit teeth problems from their parents, while others' teeth are damaged because of bad habits, like heavy smoking, eating too much sugar or not brushing teeth often. If your teeth are in bad shape, you should see a dentist and ask for help. They can help improve your teeth and tell you how to take care of them. Smiling can help you to feel more confidence and make people think of you as a more friendly person. If you want to keep healthy, you should not only smile but also laugh. An Indian doctor called Kataria said that young children should laugh about 30 times a day, while adults should laugh between 7 and 15 times a day. So please take this chance to smile and laugh now. Question: What can a dentist do according to the passage? Options: A: A dentist can tell you how to improve your bad teeth. B: A dentist can help you to take care of your bad teeth. C: A dentist can tell you how to brush your teeth. D: Both A and B
(Answer)
D

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I'm taking a test and have to guess the right answer to the question after the article. Article: John is 14 years old. He is a student of Grade Eight. He was a very active and happy boy two years ago. But everything changed after he started to play computer games. He never plays basketball or football with his friends any more. And when he sits in the classroom, he can't listen to the teachers. He sleeps in class. And he spends less and less time in studying. So he gets bad marks in tests. But he is very different after school is over. He stays in the net bar until it is closed. Ah, he loses himself in computer games. His parents can do nothing to stop him. Every morning in the school, when we see that he is so tired after a night's "busy working", we really feel sad. He is too tired! Question: John was _ two years ago. Options: A: sad and unhealthy B: active but bored C: active and happy D: healthy but sad
(Answer)
C

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I'm taking a test and have to guess the right answer to the question after the article. Article: Turn on the radio. A program will come out from a broadcasting station miles and miles away. We know that sounds and music themselves couldn't travel that distance through space .There must be something that brings the program from the station. But what is this silent carrier ( ) ? This is known as radio waves. However, we can't see them or even hear them. In fact, nobody knows exactly what they are. Nevertheless( ) ,we know that they are made by electricity . At the broadcasting station, people talk, sing, play musical instruments or make many other sounds. These sounds are changed into electricity. Then from the broadcasting aerial of a tall tower , electricity sends out radio waves which travel in all directions .And some of them reach your radio aerial. What happens next is a magical thing. The radio waves start an electric current ( ) in your aerial like the one that was first made in the broadcasting station . Finally, the loudspeaker in your radio set changes the electricity into sound .Therefore, you hear the program. ,. Question: The silent carrier that brings the program to you is called _ . Options: A: radio set B: sound waves C: radio waves D: radio current
(Answer)
C