Write a multi-choice question for the following article, with the given choices and answer: Article: Can trees talk? Yes, but not in words. Scientists have reasons to believe that trees do communicate with each other. Not long ago, researchers learned some surprising things. First a willow tree attacked in the woods by caterpillars changed the chemistry of its leaves and made them taste so terrible that they got tired of the leaves and stopped eating them. Then even more astonishing, the tree sent out a special smell---a signal causing its neighbors to change the chemistry of their own leaves and make them less tasty. Communication, of course, doesn't need to be in words. We can talk to each other by smiling, raising our shoulders and moving our hands. We know that birds and animals use a whole vocabulary of songs, sounds, and movements. Bees dance their signals, flying in certain patterns that tell other bees where to find nectar for honey. So why shouldn't trees have ways of sending messages? Options: A waving its branches B giving off a special smell C dropping its leaves D changing the colour of its trunk Answer: B giving off a special smell Question:
----
Answer: According to the passage, the willow tree was able to communicate with other trees by _ .

Q: Write a multi-choice question for the following article, with the given choices and answer: Article: Dear Daughter, As we drove off from Columbia, I wanted to write to tell you all that is on my mind. First, I want to tell you how proud we are. Getting into Columbia is a real testament of what a great well-rounded student you are. You should be as proud of yourself as we are. Your college years will be the most important of your life. It is in college that you will discover what learning is about. This will be the period when you go from teacher taught to master inspired, after which you must become a self-learner. So do take each subject seriously, and even if what you learn is of no practical use in real life, the learning skills you get will be something you will value forever. Follow your passion in college. Take courses you think you will enjoy, don't be bothered by what others think or say, but make up your own mind. Most importantly, make true friends and be happy. Don't worry about their hobbies, grades, looks, or even personalities. Start planning early what you'd like to do. Where would you like to live? What would you like to learn? I think your plan to study fashion is good, and you should decide where you want to be, and get onto the right courses. I will always be there for you, but the time has come for you to be in the driver's seat--this is your life, and you need to be in control. Being in control feels great. Try it, and you'll love it! So please treasure your college years -- make the best use of your free time, become an independent thinker in control of your destiny, and learn through your successes and challenges. May your years at Columbia be the happiest of your life, and may you grow into just what you dream to be. Love Dad & Mom (Excerpt from Kai-Fu Lee's letter to his daughter) Options: A smile to her trouble in life B fight till she succeeds C be confident and happy D make the most of her college Answer: D make the most of her college Question:
A: The purpose of the author in writing the letter is to tell his daughter to _ .

Question: Write a multi-choice question for the following article, with the given choices and answer: Article: On July 1 at exactly 7:59:59, Bejing time, the world' s atomic clocks will pause for a single second, or, more precisely, change to the unusual time of 7:59:60. The addition of a leap second , is to keep our clocks in time with the slowing of Earth' s rotation and astronomical time as measured by the sun. Just one extra second could affect the way computers and websites work, however. When the last leap second was added back in 2012, the community website Reddit crashed. For Reddit, the problem was that a Linux system got confused when it checked the network time and found an extra second. Speaking to Wired about the problem back in 2012, Linux creator Linus Torvalds commented:"Almost every time we have a leap second, we find something. It' s really annoying, because it' s code that is almost never used, and thus not tested by users under their normal conditions. " Companies have thought of their own solutions, and Google' s"leap smear"may be the best- known example. As company engineer Christopher Pascoe explains in a blog post, companies usually try to turn back the clocks by one second at the end of the day so that they play that second again. However, Pascoe believes this creates problems. He asked:"Does email that comes in during that second get stored correctly?"Google has a solution: Cut the extra second into milliseconds and then put these tiny amounts of time into the system throughout the day."This means that when it became time to add an extra second at midnight."Says Pascoe."Our clocks have already taken this into account over the course of the day." For many companies without Google' s money, however, the leap second will likely still cause some crashes. Options: A Ambiguous. B Approving. C Doubtful. D Cautious. Answer: B Approving. Question:
Answer: What' s Pascoe' s attitude toward Google' s solution to the problem?

Write a multi-choice question for the following article, with the given choices and answer: Article: Now,I'll tell you something about the Internet.The Internet is a network of computers.It became popular in the 1990s.Now,we live in the Internet Age.The Internet is very useful.You can get information,do some shopping or talk with people all over the world.You can do all these things in your own room. You can set up your own space on the Internet.We call it a homepage.It's open to anyone in the world.Write your message on your homepage.Soon,you can get answers by email from people around the world. The Internet is also useful when a flood or an earthquake happens somewhere in the world.We can learn about the needs of the people there and send them food and medicine more quickly than before. In the world of the Internet,everyone is equal.Famous writers,artists,and scientists--they are all your friends.A lucky person can even find a message from the president of a country. Some people lose themselves in the world of the Internet.That's really bad.Remember that the world of the Internet is not a real world.Facetoface communication with family,friends,and neighbours is very important.Don't forget that the Internet is only a tool for communication and information. Many people say that the Internet has some problems,but most people agree the Internet still has a wonderful future.For the first time in history,anyone can exchange messages and information immediately with other people. Options: A to get information from all over the world B to help people who need help badly C to react to email from all over the world D both A and B Answer: D both A and B Question:
----
Answer:
According to the passage,the Internet is usually used _ .