阅读下面短文，掌握其大意，然后从各题所给的A、B、C、D四个选项中选出最佳选项，并将选定答案的字母标号填在题前括号内。

     Farley worked for the Canadian government. One day，he was1 to learn more about wolves. Do wolves kill lots of caribou (北美驯鹿)? Do they kill people?

     They gave him lots of food and clothes and guns. Then they put him on a plane and took him to 2 . They put him down and went away. There were no houses or people in this place. But there were lots of animals and lots of wolves.

People tell terrible stories about wolves. They say wolves like to kill and eat people. Farley remembered these stories，and he was 3. He had his gun with him 4 .

     Then one day， he saw a group of wolves. There was a mother wolf with four baby wolves. A father wolf and another young wolf lived with them.

     Farley watched these wolves every day. The mother was a very 5 mother. She gave milk to her babies. She gave them lessons about life. They learned how to 6 food. The father wolf got food for the mother. The young    wolf 7 the children. They were a nice， happy family — wolf family! Farley did not need his8anymore. In a short time，he got on well with the family. Farley watched them for five months. He learned that many stories about the wolves were 9. Wolves do not eat people， and they do not eat many large animals. And he also learned bad things about men. It was men who killed many caribou and wolves.

     Later， Farley wrote a book about wolves. He wanted people to10 them and not to kill them.

    Mr．and Mrs．Black want to go to Beijing．But their dog Bobby1go there with them.So they2him in a pet shop．

    Mr．and Mrs．Black get back home3Beijing very late at night on Sunday,4they leave Bobby at shop.On Monday morning，Mr.Black5dog back in his car．When he gets home，he says to his wife，“Bobby is barking(吠叫)all the time．I think he wants to6me something．Doesn't he like the7or doesn't he feel well?”

    Mrs．Black8 the dog carefully(仔细地)and then says.“You're9 ． He wants to tell you something．He wants to tell10that he isn't Bobby．”

    In the mid 1990s, people started doing business on the Internet. At that time, there were two kinds of companies. First, there were traditional companies which sold things in shops. Then, there were Internet companies which didn't have shops; they sold things only over the net.

    Traditional companies didn't want to lose any business. Quickly, they created their own website and began selling things over the net. These are the so-called "brick and click" companies. Many shops are made of brick, and you click on your mouse to buy things with your computer. That's where the name "brick and click" comes from.

    By the late 1990s, e-businesses like Amazon.com and Buy.com were in trouble. Their profits were not very high, and there was a lot of competition. Many of these businesses lost a lot of money, and in 2000, many e-businesses went out of business.

    Why are "brick and click" companies, like Barnes & Noble, Toys "R" Us, and Walmart so successful? First, many customers know and trust their names. Their websites, like walmart.com, are easy to remember. These companies also have a lot of experience. They know how to run a successful business.

    In the world of e-commerce, companies are fighting for every dollar and every customer. Will "brick and click" companies win the war? Only time will tell.

"Let's go home," Liam said to his little sister, Flora, after their art class one Saturday morning. We' re late for 1 ."

 The night before, it had snowed hard. They had difficulty walking to their cozy home on Adelaide Street, passing through an empty building site. Suddenly, Liam heard a loud thud(砰的一声). He 2 only to see that Flora was gone. His sister had fallen into a deep hole. "Help!" she cried.

 Liam looked around, but no one was in sight.

"Climb up the sides!" Liam 3 . His sister tried climbing up the hole, but failed. Then, he saw a huge tree nearby. He found the 4 tree branch and broke it off. He showed it to Flora."Get hold of the tree branch!" Liam pleaded.

 She 5 the branch, but it wasn't close enough, "I can't reach it!" she responded.

 Liam saw a store in the distance and decided to get 6 . It was far, so he needed7 to mark(标记) his way.

 He went through his backpack and 8 some paint cans from his art class. I could use those paints to mark my way, Liam thought.

 Liam walked difficultly to the store with many red marks behind him. He looked 9 the window. The lights were off, and there was nothing on all the shelves. A Closed sign was on the door. Feeling upset, he walked back to Flora 10 .

 Suddenly, he had a wonderful 11 . He used his scarf, jacket, and hat to make a long rope(绳子). Liam 12 the rope into the hole and leaned down(俯下身), so Flora could catch it.

 Liam leaned down 13 Flora caught the rope. He then 14 pulled her up. Liam smiled.

 They hugged and after walking for what felt like forever, their cozy red 15 was finally in sight..