The American secret service began in 1865. It has many important jobs. One is to stop different types of fraud , such as printing fake money, credit card fraud and computer fraud. The other is to protect the president at all times. The secret service's earliest job was to stop people from making fake money. The secret service agents still have to do that because the criminals are smarter now. They are better at using computers and other expensive equipment. But agents are much smarter. Protecting the president is hard. The most dangerous places are outdoors. Agents can't check every person in the crowd, so they must watch the crowd carefully. And they always follow the president. They're just like the president's shadow. Unluckily, some criminals do want to give the president trouble, or even hurt him. The secret service agents try to find _ and stop them when they want to do something bad. It's a dangerous, but important job. The secret service helps keep the president and the country safe. ,. The American secret service _ . A) isn't to protect the president B) makes fake credit cards C) began in 1865 D) has only one important job
C

Do you like painting? Have you ever seen a painting in a tree hole? Now you can see many paintings in tree holes on a road in Shijiazhuang, Hebei Province. What's up? These paintings are painted by Wang Yue, 23, a college student at Dalian Polytechnic University. Wang describes her tree hole paintings as "a beautiful journey" through which she adds fun to her hometown. "When I saw that the trees by the roadside had lost all their leaves, the ugly tree holes became obvious ," she said. "I thought if I could paint some interesting scenes in these holes they might add some color to the city. " But Wang was worried that the pigments in her watercolors could hurt the trees. After asking environmental specialists and getting permission from city officials, Wang gathered her color palette , brushes and other things to get to work. "Painting on a tree hole is not as easy as painting on a canvas . I had to think about the shapes and sizes of the tree holes and adjust my designs accordingly," she said. "Before I began, I also had to clean off the dust from the tree holes first." "I was glad to let people see life's beauty. I hope more artists can join me in painting the tree holes," Wang said. What does Wang Yue worry about before she begins her tree hole painting? A) The cost she will spend. B) The thoughts from people about the environment. C) Something harmful in her pigments. D) Pressure from environmental specialists.
C

Joe:What do you do on weekends? David:Well, I usually have to study on Saturdays. Joe:And how about Sundays? David:Well, we have lunch together. You know, all of the members of my family. Then after lunch, I go to the park and meet my friends. Joe:Oh? What do you do there? David:We play football. After that I usually go to see a film outside the city. Joe:Do you often go out of the city? David:About once a month. My uncle has a small farm. Joe:It's nice. Do you go alone? David:No, my mum, my two sisters and some of my friends go there, too. Joe:But why do you go there? David:Many things: green trees, clean air, and there are few people. Where do they play football? A) At school B) In the park. C) Out of the city. D) In a farm.
B