阅读下面的短文，把A-D四个句子填入文中空缺处，使短文内容完整正确，然后完成第5题。
If you do not use your arms or your legs for some time, they become weak; when you start using them
again, they slowly become strong again. Everybody knows that 1.
When someone says that he has a good memory (记忆力), he really means that he keeps his memory in
practice by using it. 2. .
If a friend says that his arms and legs are weak, we know that it is his own fault (过错). But if he tells
us that he has a poor memory, many of us think that his parents are to blame (受责备). 3.
Have you ever found that some people can't read or write but usually they have better memories?
4. They have to remember days, names, songs and stories; so their memory is being trained all
the time.
So if you want to have a good memory, learn from the people who have kept on practicing
remembering.
A. This is because they cannot read or write them down in a little notebook.
B. When someone else says that his memory is poor, he really means chances to become strong.
C. Yet many people do not seem to know that memory works in the same way.
D. And few of us know that it is just his own fault.
5. What is the best title for this passage? [ ]
A. Don't Stop Using Your Arms or Legs.
B. How to Have a Good Memory.
C. Strong Arms and Good Memory.
D. Learn From the People.
