Read the article and select the best answer. Article: The cattle egret has lived in American continent in recent years. Non-native species are a worldwide problem and studies are devoted to assess the damage they cause to local species populations. The cattle egret primarily lives on the grassland and feeds in close association with animals like cattle and sheep. This bird is native to Africa, southern Europe and western Asia. The cattle egret in Brazil is unlike a number of bird species that have been established and expanded to non-native areas through human assistance. The first sight of the cattle egret in the New World were reported between 1877 and 1882, followed by sightings in British Guiana and Colombia and later expansion throughout the Americas. In Brazil, the cattle egret was first recorded in the northern region of the country in 1964, feeding along with buffalos on Marajo Island in the state of Para. While the cattle egret is not currently a threat to native animals and birds in Brazil throughout most of its geographic distribution, it has the potential to produce bad effects, as evidenced by its occupation of island environments. For example, in the Fernando de Noronha archipelago, the cattle egret drives adult native seabirds away from their nests in producing time. Understanding how the cattle egret settled and lived in Brazil is important for the better understanding of spreading patterns of bird populations and their interaction with the local species. Explaining the egret cattle's settling in the Americas is a challenging task due to the lack of sufficient information and reports on entrance time, location, and number of events. Comparisons between native and non-native populations can provide a 'natural' experimental way to clarify the biological and environmental factors that may contribute to range expansion and adaptation to climate change, and to find how animals respond to strange and sudden ecological and environmental pressures. Question: The research on the American cattle egret Options: A: must be meaningless to other animals. B: will mainly take place in the laboratory. C: should be very easy due to the existing fact. D: can help discover how animals adapt to the environment.
D

Read the article and select the best answer. Article: The price of gas has been going up. We do not know when it will end. Many people want to know how they can save fuel . The best way to save fuel is to change driving habits. The accelerator , or gas pedal,has a lot to do with how much gas you use.The faster you drive, the more gas you use. Drivers should slow down a bit to save fuel. Driving at a steady speed helps to save much gas you use.Accelerating slowly to get to the speed you want helps save gas, too. The more you drive your car.the more gas you use.Think about the places you need to go before leaving your home. _ ) that you need to do as you can in one trip.Always try to pick the shortest route when going somewhere. Cars that are in good working condition use less fuel. Take care of your car. Make sure the engine is running well and is tuned-up often. Have a mechanic check if something seems wrong. Tires are important, too. Keep the tires inflated properly on a car. It will help the car roll better. If a car's tires are worn, then they should be replaced. Finally,think about using your car less.Walk or ride a bike if you do not have to go far.Carpool or take public transportation when you can.Leaving your car at home really saves gas. Question: Which of the following is NOT true according to the passage? Options: A: Always keep your car in good working condition. B: Never use your car unless it is necessary. C: Replace your tires if they are worn out. D: Never keep your gas pump too full.
D

Q: Read the article and select the best answer. Article: The morning had been a disaster.My tooth was aching,and I'd been in an argument with a friend.Her words still hurt:"The trouble with you is that you won't put yourself in my place.Can't you see things from my point of view?"I shook my head stubbornly--and felt the ache in my tooth.I'd thought I could hold out till my dentist came back from holiday,but the pain was really unbearable.I started calling the dentists in the phone book,but no one could see me immediately.Finally, at about lunchtime,I got lucky. "If you come by right now,"the receptionist said,"the dentist will fit you in ." I look my purse and keys and rushed to my car. But suddenly I began to doubt about the dentist.What kind of dentist would be so eager to treat someone at such short notice?Why wasn't he as busy as the others? In the dentist's office,I sat down and looked around.I saw nothing but the bare walls and I became even more worried.The assistant noticed my nervousness and placed her warm hand over my ice-cold one. When I tole her my fears, she laughed and said ,"Don't worry.The dentist is very good." "How long do I have to wait for him?"I asked impatiently. "Come on ,he is coming.Just lie down and relax.And enjoy the artwork,"the assistant said. "The artwork?"I was puzzled. The chair went back,suddenly I smiled.There was a beautiful picture, right where I could enjoy it: on the ceiling .How considerate the dentist was ! At that moment,I began to understand what my friend meant by her words. What a relief! Question: Why did the author suddenly smile? Options: A: Because the dentist came at last. B: Because the assistant kept comforting her. C: Because she could relax in the chair. D: Because she saw a picture on the ceiling.
A: D

(Question)
Read the article and select the best answer. Article: Companies trying to market products to mothers need to head onto the Internet with a survey showing the mothers today are online daily, using Facebook to connect to friends and Google to diagnose illnesses. A survey by parenting website BabyCenter.corn found 63% of online mothers now use social media networks such as Facebook regularly, compared to only 11% three years ago."They don't watch TV as much, they are not reading magazines as much, but instead they check Facebook where people are really drawn together over parenting questions," BabyCenter's Editor-in-Chief Linda said."One of the major activities is looking for comments on products.They are information seeking, particularly when it comes to babies, and companies need to realize this." Companies also need to know their market well as mothers are sharing information--and complaints--online regularly. A drug company learned the hard way last November when online mothers found an ad targeting moms to be offensivedl , which result in a hot debate on the micro-blogging site Twitter.The company had to take the video ad down from its website and apologized for any offense caused. The online survey also found that mothers aren't going to the doctor as often.Instead they are using the Internet to find out what is wrong with their children and, when they do go to the doctor, asking which drug they should use rather than for a diagnosis.In online communities children's health issues are the leading topic of interest rating as high as 91 percent followed by childhood development tips at 79 percent and product reviews at 72 percent. Question: The writer takes the drug company's lesson as an example to Options: A: discuss the influences of online mothers B: advise companies not to advertise online C: persuade more mothers turn to the Internet D: make mothers realize the importance of ads
(Answer)
A