Read the following article and select the best answer. Article: Can you remember a morning when you've woken up to the ring of your alarm clock and wished you could stay in bed? You haven't slept well, your hair is a mess. Worse, you can't stop yawning. Yawning is universal to humans and many animals. Cats, dogs and fish yawn just like humans do! Yawning is an involuntary(,) action during which you open your mouth and breathe deeply. The average duration of a yawn is about 6 seconds. The purpose and cause of yawning are still a mystery. Scientists are not sure what causes a yawn. People yawn when they are tired or bored, but they also yawn when they aren't. There are many ideas explaining why we yawn. One idea is that yawning is a way for the body to become more alert by taking in more oxygen. A yawn increases the heart rate, forces carbon dioxide out of the lungs and blood stream, and brings oxygen to the brain. But one study showed that volunteers given a lot of oxygen did not yawn any less than before, while those given a lot of carbon dioxide did not yawn more. Another idea is that early humans used yawning as a form of communication. If one decided it was time to sleep, they would tell the others by yawning and they would do it in return to show they agreed. A third explanation comes from psychology professor Gordon Gallup of University at Albany in New York. He said that as people yawn, they cool off their brains. "Brains are like computers." he said. "They only operate efficiently and effectively when they're cool. Many things connected to yawning, like being tired, make the brain hot, and yawning can reduce the heat." Scientists have sent people into space, and created terrible nuclear weapons, but there are lots of seemingly simple things, such as why we yawn, or hiccup , that they can't figure out. Next time you are in class in the morning, let out a big yawn and watch to see how many of your classmates yawn in response! Question: What's the purpose of the description of how bad you may feel when you're woken up in the morning? - To explain why humans yawn. - To explain how humans start yawning. - To lead into the topic of yawning. - To complain about being woken up by the clock.
To lead into the topic of yawning.

Read the following article and select the best answer. Article: Attention STARBUCKS Owners of Stainless Steel Travel Mug Mug lid Recall---16 oz Stainless Steel Travel Mug We've recognized a fault at the cup. The fault might cause some lids to lift slightly from the body of the mug, and could possibly result in injury from hot liquid leaking. So, we have given a lid recall notice immediately. The notice is only related to STARBUCKS 16 oz Stainless Steel Travel Mugs which were sold between November 2012 and February 2013. The bottom of the mug is stamped with "ThermoSServ", the distributor's name. There is not any printing on the mug handle. At STARBUCKS, customers' safety is valued above anything else. Therefore, no matter whether your lid is leaking , in the interest of your safety, we request you bring your mug to your nearest STARBUCKS (excluding Esso STARBUCKS), where they are sure exchange the lid for a new lid that fits well and safely. The new lids are going to be available March 1, 2013. Don't use your mug until you exchange the lid, please. Here's what you do: * Please do not use your mug until you have exchanged the lid for a new one. * New lids will be available March 1, 2013. * Return your travel mug to a STARBUCKS store. * Your lid will be exchanged for a new lid. If you'd like to return the entire mug, bring it back at any time for a full repayment. If you have any questions regarding this recall, please don't hesitate to us at: Toll Free Number: 1-999-701-1717 9:30 am - 6:00 pm Eastern Standard Time STARBUCKS Question: We can learn that STARBUCKS from the passage _ . - is a club for travelers - wants to make more money - is an organization helping customers - cares about the customers' safety
cares about the customers' safety

*Question*
Read the following article and select the best answer. Article: April 2009, in the state of Georgia, USA, twenty thousand people watched high school students from twenty- eight countries compete with robots they had built. More than ten thousand students and more than five hundred robots took part in the competition. Almost 1,700 high school teams took part in the competition called LUNACY. In January, the organization sent the same robots to each team. The teams had six weeks to build robots that could compete in the LUNACY game. The playing area consisted of six robots, three on each team. Each robot had a trailer connected to it. The robots had to pick up large balls and throw them into the trailers of opposing robots. The robots were moving on a platform where they could move smoothly. A team from the USA won the LUNACY competition. American inventor Dean Kamen started the competition in 1989 to increase young people's interest in science and technology. The organization holds robotic competitions around the world. It offers programs that help young people learn about science, technology, engineering and maths, and at the same time build life skills. Many companies provide support for the organization. Mr. Kamen says the goal is more than building robots. He says the student competitors showed they could solve difficult technological problems and, he says that it is good news because the world needs creative thinkers to solve the increasingly difficult problems of the future. Question: Dean Kamen's reason for starting this competition was _ . - to get young people more interested in science and technology - to get more information about designing and building robots - to help the organization get more support from many companies - to show robots' use in receiving balls with trailers
**Answer**
to get young people more interested in science and technology