Question: I'm taking a test and have to guess the right answer to the question after the article. Article: You've heard of 3D printing from newspaper and TV programs. It can "print" in plastic, metal, nylon, and over a hundred other materials. 3D printing technology has been around since the 1980s, it was not widely used until the early 2010s. The first working 3D printer was created in 1984 by Chuck Hull. 3D printers use many different types of technologies, but they all share one thing in common: they create a three-dimensional object by building it layer , by continuing layer, until the whole object is completed. Imagine a baker lay down each layer one at a time until the whole cake is formed. 3D printing is somewhat similar, but just a bit stricter. How can 3D printers work so well? The most important thing-a program, a 3D printer also needs to have instructions for what to print from a computer. It needs a file as well. The file which is a Computer Aided Design (CAD) paper is created with the use of a 3D modeling program. The program creates a paper that is sent to the 3D printer. Along the way, software pieces the design into hundreds, or more likely thousands of layers. The 3D printer builds up one layer at a time, from the bottom to the top, until the object is done. 3D printings can be used for making many kinds of things such as machine parts, daily life objects, even human organs using a person's own cells. Nowadays, Marc. Dillon founds a project which deals with many world famous paintings like Leonardo da Vinci's Mona Lisa, Van Gogh's Sunflower with 3D technology. This project helps the blind people enjoy the fantastic art through touching. In order to provide a good user experience, these 3D paintings have special instruments which can tell people what they touch. Question: According to the passage, _ can help the blind know what they touch. Options: A: CAD paper B: Machine parts. C: The world famous paintings D: Special instruments
Answer: D

Question: I'm taking a test and have to guess the right answer to the question after the article. Article: Everyone hopes to have a healthy lifestyle. But do you know what a healthy lifestyle is like? Here are some ways to have a healthy life. Get active This is the most important way of a healthy lifestyle. Walking, running, playing basketball and other sports will help you keep healthy. Keep clean Keep the places around you clean. Unclean and untidy places can not only make you angry but also (...) make you ill. Eat healthily Our health depends on our food, so everyone should remember to eat healthy food. The healthier food you eat, the healthier you will be. Live green This is the easiest way to live a healthy lifestyle. Plant trees around your house. Try your best to use less water. Stop using things if they are bad for environment . Question: Which of the following is Right according to the passage? Options: A: Get active is the only way to keep healthy. B: You don't need to keep your home clean. C: You should try your best to use less water. D: Our health depends on our clothes.
Answer: C

Question: I'm taking a test and have to guess the right answer to the question after the article. Article: There are four people in the twins' family. They are the twins, their father and their mother. The twins' names are Lucy and Lily. They are fourteen. They are in the same class in NO.1 Middle School. They are very good students. They not only work very hard but also sing very well. They want to join the music club. Lucy wants to play the piano. Lily can play the guitar. Their father, Mr. King, is a teacher. He teaches English in a school near his home. Their mother, Mrs. King, is a teacher, too. She teaches Chinese. Mr. and Mrs. King are in different schools. But they have the same hobby--play the guitar. Question: Their parents work _ . Options: A: in the same school B: in the hospital C: in the factory D: in different schools
Answer:
D