根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。

When you laugh, you will open your mouth and show your teeth. The healthier those teeth are, the happier you look. Why is that? It’s 　 81　 your teeth are important in many ways. If you take care of them, they’ll help to take care of you. Strong, healthy teeth help you eat the right food to make you grow. They also help you speak　 82　 .

You can take care of your teeth by doing like these:

　 Brush your teeth 83　 a day before breakfast and before bedtime.

Brush all of your teeth, not just the front ones.

　 　 84　 your time while brushing. Spend at least 3 minutes each time you brush.

Learn how to floss（用牙线清理）your teeth, which is a very important way to keep them healthy.

　 Brushing and flossing keep your teeth healthy. You also need to 　 85　 about what you eat and drink. Eat a lot of fruits and vegetables and drink water instead of drinks.

What should you think about when trying to find your career? You are probably better at some school subjects than others. These may show strengths that you can use in your work. A boy who is good at mathematics can use that in an engineering career. A girl who spells well and likes English may be good at office work. So it is important to know the subjects you do well in at school. On the other hand, you may not have any specially strong subjects but your records show a general satisfactory standard. Although not all subjects can be used directly in a job, they may have indirect value. A knowledge of history is not required for most jobs but if history is one of your good subjects you will have learned to remember facts and details. This is an ability that can be useful in many jobs.
　　Your school may have taught you skills, such as typing or technical drawing, which you can use in your work. You may be good at metalwork or cookery and look for a job where you can improve these skills. If you have had a part-time job on Saturdays or in the summer, think what you gained from it. If nothing else, you may have learned how to get to work on time, to follow instructions and to get on with older workers. You may have learned to give correct change in a shop, for example. Just as important, you may become interested in a particular industry or career you see from the inside in a part-time job.
　　Facing your weak points is also part of knowing yourself. You may be all thumbs when you handle tools; perhaps you are a poor speller or cannot add up a column of figures. It is better to face any weakness than to pretend they do not exist. Your school record, for instance, may not be too good, yet it is an important part of your background. You should not be apologetic about it but instead recognize that you will have a chance of a fresh start at work.
【小题1】We can infer from the first paragraph that ________.