Question: Write a multi-choice question for the following article, with the given choices and answer: Article: Have you ever heard an echo of your voice? An echo is a reflected sound. Stand in a very large, empty hall with nothing on the walls. Then shout. The sounds you make will hit the walls and come back to you. The walls reflect the sounds. These reflected sounds are called "echoes". We can use reflected sound to make sound travel farther. Hold a watch about fifty centimeters from your ear. You cannot hear it. The sound of the watch travels a short way in all directions. It does not travel as far as your ear. You can make it travel to your ear by using a roll of cardboard . Make the roll of cardboard about fifty centimeters long. Put one end over your ear and hold the watch at the other. Now you can hear the watch because the sound has not gone in all directions. It is reflected down the roll to your ear. A megaphone works in the same way. It makes sound travel farther. It reflects the sound into a beam which can travel a long way. In the ship, the sailor uses the megaphone to make his voice travel. Without the megaphone, his voice cannot travel far. We use reflected sound in many ways. We use it to measure the depth of the sea, for example. Among the animals, bats and whales use reflected sound to tell them where they are and what things are near them. Options: A reflected sound is useful only to blind people B people haven't made use of reflected sound yet C bats use reflected sound to fly and get food D whales don't use reflected sound as they live in the sea Answer: C bats use reflected sound to fly and get food Question:
Answer: . From the text we learn that _ .

Question: Write a multi-choice question for the following article, with the given choices and answer: Article: Every country has its own way of cooking. American people have their way of cooking, don't they? Most people in the United States like fast food, but if you think that American people don't like cooking, you are wrong. It's true that most Americans eat fast food for their breakfast and lunch, but they also think cooking is interesting. Parents see the importance of teaching their children how to cook, and most Americans say that home cooked meals are the best. Americans have their own way of cooking. For example, baking is the most popular way of cooking in America. Most American families have ovens. American cooks pay attention to the balance of food. In planning a big meal, they try to cook meat, a few vegetables, some bread and often some sweet food. They also like to make the meal look beautiful. There are many kinds of food of different colors, so the meal is healthy and looks beautiful, too. Options: A He cooks a lot of meat. B He cooks meat, vegetables, bread and sweet food for a big meal. C He makes the food delicious. D He cooks a lot of vegetable. Answer: B He cooks meat, vegetables, bread and sweet food for a big meal. Question:
Answer: How does an American cook balance different kinds of food?

Question: Write a multi-choice question for the following article, with the given choices and answer: Article: Tom went to see his grandparents with his father. In the train Tom often put his head out of the window. His father said, "Tom, don't put your head out of the window." But Tom went on putting his head out of the window. His father took Tom's hat quietly and hid it behind his back and said to Tom, "You see your hat is gone." Tom was afraid. His father said, "Well, whistle once. Maybe your hat will come back." Tom whistled. His father put his hat on Tom's head quickly. "Oh! It's wonderful!" Tom laughed and said. He quickly took his father's hat and threw it out of the window. "Now it's your turn to whistle, Dad!" he said happily. Options: A his hat B his father's hat C his head D his father's head Answer: C his head Question:
Answer:
Tom often put _ out of the window.