题目内容：

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中的词语的正确形式填空。

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, 1.  after that it's too late.

Learn to swim

Seriously, this is so important 2. it can save your life. If you can't swim well, you 3. (not) be able to do water sports like waterskiing, surfing and diving. Even taking a boat trip will be4.(danger) for you.

Make sure you do it.

Try at least one kind of team sports

Being a good team player is5.important skill in life. You can't just think of yourself,6. have to work well with other people. Other advantages of team sports like basketball, football and baseball are that they keep you fit and healthy, and they are also great fun. Teams7. (usual) have a good social life too-you'll go to lots of parties and make many friends.

Collect something

One of the best8. (hobby) for under-18s is collecting things. You could collect kinds of stamps, or you could collect things that make you 9. (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 album10.(put) your collection in and to write what each thing means to you. That way you won't forget.