阅读下面短文，在表格内的空白处填入合适的答案(每空格限填一词)
It seems that a family just isn't complete (完整的) without a pet. But if pets aren't suitable to a family's lifestyle or environment, they can quickly lead to problems such as stress or arguments (争执). To save yourself and your family such problems, treat this decision seriously.

When choosing a pet, people must consider the family's health. Many people are allergic (过敏的) to cats and dogs. Perhaps a dog or cat with short hair will be fine. And a dog might not be the best choice for a child who is naughty (顽皮的) because the dog might bite him or her. Some people can also have problems with certain pets. It's a good idea to spend a little time with the pet around each member of the family before making your decision.
Consider the quality of life of the pet, too. If a pet is used to having space to run around, it can quickly develop psychological (心理的) problems when it is kept in a small flat all day. If pets are allowed to run about in areas with lots of traffic, they can meet an early end. Cats shouldn't be brought into homes that already have large dogs because they won't be able to get along well with each other.
The decision as to what kind of pet to choose is very important. If you find the right one to suit (适合) everyone in the family and their lifestyle, then it's time to choose one. Remember that your decision is important because it can have effects that last for many years.

    Earth is our home. It has air that we can breathe(呼吸). It has water for us to drink. It has plants and animals that we can eat. Earth is not too hot or too cold for us. It has everything we need to live.

    We are on earth, but we call see things that are not on earth. Early in the morning, we can see the sun comes up. All day, the sun seems to move across the sky. Later in the day, we can see the sun goes down. But the sun is not really moving around us. We are the ones who are moving. Every morning, we turn towards the sun. Every night, we turn away from it. Every year, we go around it. Earth is our spaceship. All of us in the spaceship are riding around the sun.

    At night, we can often see the moon and stars. From earth stars look like little points of light because they are so far away. But stars are really big. A star is a great mass of burning gas. It gives off light and heat. Our sun is a star.

    There are eight planets moving around our sun. Earth is the third planet around the sun. Some of the planets have moons. A moon goes around a planet just as a planet goes around a star. Earth has only one moon. Some planets have more.

C

    Today is a sunny day. It is August 5th. It is Judy's birthday.

    When she comes back home from school, she sees a blue card on the table. It says, "There's a present (礼物) for you, Judy. Look for it in your bedroom."

    Judy runs into her bedroom Her parents are looking at her and smiling (微笑). On the chair she sees a red box. She thinks her present must be in it. She opens it and there is a yellow card in it. It reads "dear Judy, I'm your present. My first letter (字母)is in the word 'bag' , but not in 'age' My second letter is in 'like', but not in 'mow' My third letter is in 'know', but not in 'now'. And you can find my last letter in both desk' and 'get'. What am I?"

    Judy thinks for about two minutes and says, "Aha, I know. But where is it?" Her father tells her it is in the yard (院子).

根据材料内容简要回答下列问题。

    On May 5^th, 2017, at Shanghai Pudong International Airport, China's first Homemade jet airliner(喷气式客机), the C919, took off successfully for the first time. It has taken about ten years for the scientists and researchers to make this Chinese dream come true. It's a pride of the whole nation. So far, more than 23 countries have already ordered 570 C919 planes from China. But we still have a long way to go before the C919 carries passengers by 2020.

    What's more, China is working on the new high-speed trains with the highest speed of 400km/h. It will be ready by 2020. Many countries, especially the ones in Central Asia, Southeast Asia, the Middle East and Eastern Europe, are planning to build high-speed rail lines or to improve their railways with the help of China.

    China has made great progress in both science and technology. And it makes a great contribution(贡献)to humans，too. All of these are changing the daily life of Chinese people，even of the people around the world.

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