Three Things to Do Before You Are 18

    Are you bored with your daily life? Here are some things you should try before you are 18, because after that it's too late.

    ★Learn to swim

Seriously, this is so important that it can save your life. If you can't swim well, you won't be able to do water sports like waterskiing, surfing and diving. Even taking a boat trip will be dangerous for you. Make sure you do it.

    ★Try at least one kind of team sports

     Being a good team player is an important skill in life. You can't just think of yourself, but have to work well with other people. Other advantages(优点) of team sports like baseball are that they keep you fit and healthy, and they are also great fun. Teams usually have a good social life too--- you'll go to lots of parties and make many friends.

    ★Collect something

    One of the best hobbies for boys and girls under 18 is collecting things. You could collect kinds of stamps, or you could collect things that make you remember what you have done, like cinema tickets for films you have seen or emails from friends. The best way to collect is to have a special album(专辑) to put your collection in and to write what each thing means to you. That way you won't forget.

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甲、乙为人口超10亿的国家，下图示意两国2015年人口年龄结构。缓解甲国人口问题的对策（    ）

文中共有10处语文错误，每句中最多有两处。错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：在错的词下面一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词；

      2）只允许修改10处，多者（从第11处起）不计分。

    Last Sunday, I showed Tom, the friend from the USA, around the city. This was the first time that Tom visited my hometown, and he found the trip excited.

Early in the morning, I took her to the park near my home. He was astonished to seeing so many people did exercise in the park. Then, we went to the museum. From the exhibitions, he learned a lot at the history of the city. After leaving the museum, we went downtown and found it was crowded with quite a lot of building. On our way to home, Tom said he was really amazed by that he found. But he hoped that he would have chances to come here again.