阅读理解，根据短文回答问题。
We each have a memory. That's why we can remember things after a long time.
Some people have a very good memory and they can easily learn many things by heart,
but some people can only remember things when they say or do them again and again.
A good memory helps one learn a language well. Everybody learns his own language
when he is a small child. He hears the sounds, remembers them and then he learns to speak.
Some children are living with their parents in foreign countries. They can learn two languages
easily because they hear, remember and speak the two languages every day. In school it is not
easy to learn a foreign language because the students have little time for it and they have to learn
other subjects, too.
Our memory can get better and better if we do more and more exercises. Do you want to
learn a foreign language well? If so, you must do a lot of listening and speaking.
1. We can remcmber things after a ______ time because we each have a ______.
2. A man with a memory can learn many ______ by heart.
3. If a child often hears, remembers and ______ two languages every day, he or she
can ______ these languages easily.
4. At school, it is not easy for the ______ to learn a foreign language well because
they have _____ time for it and they have to learn other subjects, too.
5. If we want to learn a foreign language well, we must ______ a lot of ______ and speaking.