We each have a memory（记忆力）.That’s why we can still remember

We each have a memory（记忆力）.That’s why we can still remember things after a long time.Some people have very good memories 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.Many of the great men of the world have got surprising memories.
A good memory is a great help in learning a language.Everybody learns his mother 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 as easily as one because they hear,remember and speak two languages every day.In school it is not so easy to learn a foreign language because the pupils have so little time for it,and they are busy with other subjects,too.
But your memory will become better and better when you do more and more exercises.
根据短文内容,选择最佳答案.
1、Some people can easily learn many things by heart because______.
A．they always sleep very well B．they often eat good food
C．they read a lot of books D．they have very good memories
2、Everybody learns his mother language.____
A．at the age of six B．when he is a small child
C．after he goes to school D．when he can read and write
3、Before a child can speak,he must______.
A．read and write B．make sentences
C．hear and remember the sounds D．think hard
4‘ In school the students can't learn a foreign language easily because____
A they have no good memorise B they have no good books
C they have too much time for it D they are busy with other subjects
5' the best title of this text is ____
A two languages B learning A language
C something About Memory D remembering things

D,B,C,D,C