Read the following article and select the best answer. Article: One day a mother camel and her son walked through a desert. They were looking for water and grass. The son asked, "What do water and grass look like, Mum?"His mother answered, "Water looks like the sky, blue and clear.While grass is green, fresh and nice." After they walked for a day and a night, the son suddenly cried, "Look!Mum,there is water and grass over there!" "What a foolish talk,my boy!" The water and grass were on the left,while the desert was on the right.But because the mother camel was blind( )in her left eye,she could only see a sea of yellow sand with her right eye.So she didn't believe what the young camel said. The next day they went on walking ,the young camel found a second _ ,but his mother still did not believe him. She said angrily, "No,that's not an oasis,but a desert. I have more knowledge and experience than you. You are wrong again. You should listen to me." This time the young camel was angry with his mother,too. So when he saw an oasis for the third time, he left his mother without telling her.He ran to the grass and ate his fill. But his poor mother was still walking on and she was still hungry and thirsty. Question: At first the young camel didn't know _ . - how to go through the desert - what they wanted to do - where they wanted to go - what water and grass looked like
what water and grass looked like

Read the following article and select the best answer. Article: If you think GM food sounds far away from you, you are totally wrong. In fact, you may eat GM food every day. Four of every five people in the world are eating GM food, according to the Ministry of Agriculture. According to Xinhua News Agency, in China, the only GM plants that are grown for sale are cotton and papaya. Also, China buys some GM plants from other countries, such as soybeans and corn. The GM plants are used to make other products. A reporter once said, "In China, more than half of cooking oil is soybean oil. And 90 percent of that oil is made from GM soybeans." So it's possible that we eat GM food every day! Scientists have changed GM plants' DNA in a laboratory. Scientists usually do this to protect plants against bugs and diseases and have more _ . Many people think it's against nature. Also, they worry that eating such food might be bad for their health. Is GM food safe? There's no agreement. Some people say that GM food causes tumors. But there are no long-term safety studies about GM food. If you want to stay away from GM food, you can start by checking the cooking oil in your home. Question: In China, people grow GM plants for sale like _ . - cotton and papaya - soybeans and corn - cotton and corn - soybeans and papaya
cotton and papaya

Read the following article and select the best answer. Article: Have you ever walked down a city street and suddenly seen a bright garden full of vegetables and flowers? It may be a community garden. The community gardens are planted by the people in the community. They are not just pretty places. They improve the neighborhoods. People first started planting these gardens during the 1970s. At that time, the price of vegetables and fruits was rising. In many city neighborhoods, crime was increasing. There were also many other problems. People decided to get together to plant gardens to fight against these problems. The gardeners thought they might make the area more beautiful and improve people's life. These gardeners were right! Community gardens have many benefits. They improve their neighbourhoods. They also make people feel they belong to the community. When people work together in a garden, they feel they are connected with each other. People work on a small area within the garden. They grow vegetables or fruits. Each person decides what he or she is going to grow. However, they also work together to help each other. Some members have gardening experience. They can help those who are just learning how to grow vegetables and fruits. Sometimes, garden members pay for supplies. The supplies usually include small plants and tools. Many community gardens have sponsors . They pay for the supplies for the gardens. It helps to keep the gardens going every year. Sponsors may be parks, schools and local companies. Some groups want to be a part of the community. They help clean up and beautify a neighborhood. They also pay for the supplies. Community gardens give people a chance to work together. They can make the community stable . There are many programs of community gardens. Some gardens provide programs for children and elder people. They may provide classes. They may give the vegetables and fruits to poor people. Community gardens also improve air. Today there are about 10,000 community gardens in cities in the US. They have become popular because of their benefits. People... Question: People started to plant community gardens because _ . - it was a good way to learn gardening - they liked fresh vegetables and flowers - it helped them get more experience - they wanted to solve the problems
they wanted to solve the problems