Read the following article and select the best answer. Article: Time Zones Strange things happen to time when you travel. Because the earth is divided into twenty-four zones one hour apart .You can have days with more or fewer than twenty-four hours, and weeks more or fewer than seven days. If you make a five-day trip across the Atlantic Ocean ,your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Travelling west ,you set your clock back; traveling east , you set it ahead. Each day of your trip has either twenty-five or twenty-three hours. If you travel by ship across the Pacific , you cross the international date line. By agreement, this is the point where a new day begins, when you cross the line, you change your calendar one full time day, backward or forward. Travelling east, today becomes yesterday; traveling west, it is tomorrow. Question: Strange things happen to time when you travel because _ . - no day really has 24 hours - the earth is divided into time zones - time zones are not all the same size - no one knows where time zones are
the earth is divided into time zones

Read the following article and select the best answer. Article: Recently I came in contact with the true meaning of love. That would have been, Kane, a boy. Kane was the two-year-old son of Jolene, my new neighbor. At a glance Kane was a sight. He'd been born with hard sticks for legs. And on that morning I witnessed the effect that Kane's physical shortcomings had on his family. But I also witnessed much more than that. I saw an extraordinary family that embraced this special child. A family that wouldn't allow Kane to know he was different. Jolene had constructed a small cart just a few inches off the floor for his son to get around. Using his hands to move about, Kane moved the cart to "go to" any place just as everyone else was able to do. Kane worked that little cart like a master. Kane was a vital focus of the entire family. He was more than just a member of the family; he was the soul. This child was the driver, the motivator, and the founder of much of the interaction. Much later in my life, I came to realize that God had sent this child to help some of us who just weren't getting what love was all about. Even with my limited capacity for understanding at the time that Kane was a highly developed spirit with great wisdom. Kane demanded attention, but not because of his mobility challenges or other apparent shortcomings. In his mind, he had no challenges or shortcomings. The truth is that he received attention because he was alive and real and had so much to offer. Kane was and still is a lot of warm and powerful energy sent to us all, so we might learn that love surpasses all things. Kane, a fragile yet lovely baby, was here to teach us all an important lesson. And at the age of two he did just that. Question: Kane needed attention because he wanted to show _ . - he can challenge his difficulty in moving - he had challenges or shortcomings in his life - he himself needed to be looked after by others - he had the power to prove he was capable too
he had the power to prove he was capable too

Q: Read the following 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 took 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 icecold one. When I told 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: What made the author begin to doubt about the dentist? - The dentist's agreeing to treat her at very short notice. - The dentist's being as busy as the other dentists. - The surroundings of the dentist's office. - The laughing assistant of the dentist.
A: The dentist's agreeing to treat her at very short notice.

(Question)
Read the following article and select the best answer. Article: Dogs are social animals and without proper training, they will behave like wild animals. They will soil your house, destroy your belongings, bark excessively, fight other dogs and even bite you. Nearly all behavior problems are perfectly normal dog activities that occur at the wrong time or place or are directed at the wrong thing. The key to preventing or treating behavior problems is learning to teach the dog to redirect its normal behavior to an outlet that is acceptable in the domestic setting. One of the best things you can do for your dog and yourself is to train its obedience. Obedience training doesn't solve all behavior problems, but it is the foundation for solving just about any problem. Training pens up a line of communication between you and your dog. Effective communication is necessary to instruct your dog about what you want it to do. Training is also an easy way to establish the social rank order. When your dog obeys a simple request of "come here, sit," it is showing obedience and respect for you. It is not necessary to establish yourself as top dog or leader of the pack by using extreme measure. You can teach your dog its subordinate role by teaching it to show submission to you. Most dogs love performing tricks for you to pleasantly accept that you are in charge. Training should be fun and rewarding for you and your dog. It can enrich your relationship and make living together more enjoyable. A well-trained dog is more confident and can more safely be allowed a greater amount of freedom than an untrained animal. Question: Behavior problems of dogs are believed to _ . - occur when they go wild - be just part of their nature - get worse in modern society - become a threat to the community
(Answer)
be just part of their nature