Question: Read the following article and select the best answer. Article: Dear editor, I live in a beautiful city. Many visitors come to my city every year because there are so many colorful peacocks   here. The peacocks mostly live on the grassland of Dongfeng Square. Visitors usually throw food to them, but they don't think about at all whether the food is good or not. Some of the peacocks became ill, and some even died eating the bad food given by visitors. I'm sure most of the visitors who throw food to the peacocks really like the bird, but they don't realize that they may be doing them harm  . Visitors should be told that what they have done is harmful to the birds, and this kind of thing must be stopped. Perhaps we can build some small shops beside Dongfeng Square to sell peacock food. For us every person, it is our duty to give more love to these beautiful birds to look after them carefully. Yours, Wang Yang Question: Many visitors come to the writer's city every year to   _  . - give peacocks food - see peacocks - do some shopping - travel
Answer: see peacocks

Question: Read the following article and select the best answer. Article: There are trains to carry people,trains to carry animals or carry things.There are fast trains and slow ones.Some trains go through hills.In big cities,the streets are usually very busy.So you can find trains under the ground.they carry people quickly in and out of the big cities.Can a train run over the water?Yes,it can.There are many bridges over the rivers.The trains can easily run over the water.But it is not easy to build the bridges.Today's trains have dining rooms for people.You may eat something in them on the way if you are hungry.Trains are useful to men,women and children.Many children have model trains.With the model trains they can build their own rails  and enjoy the wonderful world of trains. Question: There are all kinds of trains.Here " all kinds of trains" means   _  . - fast trains and slow trains - many different kinds of trains - trains to go through hills - trains to carry people
Answer: many different kinds of trains

Question: Read the following article and select the best answer. Article: One of the most famous scientists to study adaptations  was Charles Darwin . He was born in England in 1809. He wasn't the best student in his school, but when he was 16, his father sent him to a medical school. Charles liked spending time outdoors observing  nature more than having medical classes. He dropped out without graduating. Next, Charles' father sent him to school to become a minister . This time he made it to graduation, but he didn't want to do the work of a minister. His friends encouraged him to follow his interest in science. Luckily, Charles was invited to sail on the Beagle as an unpaid scientist after graduation. The Beagle was to travel to South America and then around the world. Their task was to make maps of the places they visited. On December 27th, 1831. Charles Darwin sailed from England on the Beagle. The trip was planned to last two years. In fact, it lasted five. During this time, he saw many amazing things. He collected lots of plants and animals and took them back to England to begin his scientific study. Twenty-three years later, Darwin published a scientific paper with another man named Wallace. Darwin described how some animals have adaptations that help them survive. _ are passed on to offspring . Darwin's ideas about adaptations are still very important to the study of living things. Question: When Darwin published the scientific paper, he was   _   years old. - twenty - twenty-three - forty-five - fifty
Answer: