If you do not use your arms or your legs for some time, they become weak; when you 　1 using them again, they slowly become __2_ again. Everybody knows this, and nobody would think of questioning this fact. 　3 there are many people who do not seem to know 4 memory works in the same way. 　5 someone says that he has a good memory, he really means that he 6 his memory in practice exercising it frequently 7 consciously ( ) or unconsciously. When someone 8 says that his memory is poor, he really means that he does not give it enough 　9 to become strong.

If a friend complains that his arms and legs are 10 we know that it is his own fault. But if he tells that he has a poor memory, 　11 of us think his parents are to blame 12 that he is just unlucky, and few of us 13 that it is just as much his own fault as if it is his arms or legs 14 were weak.

Have you ever noticed that people who cannot read or write usually have 　15 memories than those who can? This is because those who cannot read or write 　16 remember things; they have to remember dates, places, names, songs and stories. 17 their memory is the whole time 18.

So 19 you want a good memory, learn from those people, and 　20_ remembering.

1．A．keep　　　　 B．go on　　　 C．stop　　　　 D．start

2．A．well　　　　 B．ill　　　　 C．strong　　　 D．weak

3．A．Yet　　　　　 B．Therefore　 C．So　　　　　 D．Naturally

4. A．whether　　 B．when　　　　 C．that　　　　 D．if

5．A．As　　　　　 B．What　　　　 C．While　　　 D．When

6．A．wants　　　　 B．builds up　 C．makes　　　 D．keeps

7．A．both　　　　 B．neither　　 C．either　　　 D．whether

8．A．again　　　　 B．else　　　　 C．more　　　　 D．once

9．A．time　　　　 B．use　　　　 C．chances　　 D．thought

10．A．strong　　　 B．tired　　　 C．broken　　　 D．weak

11．A．few　　　　 B．none　　　　 C．all　　　　 D．many

12．A．so　　　　　 B．or　　　　　 C．and　　　　 D．but

13．A．get to know B．would like to say C．notice D．realize

14．A．really　　　 B．also　　　　 C．that　　　　 D．who

15．A．worse　　　 B．better　　　 C．more　　　　 D．less

16．A．used to　　 B．can not　　 C．try to　　　 D．have to

17．A．So　　　　　 B．Because of　 C．However　　 D．Since

18．A．ready　　　 B．being used　 C．busy　　　　 D．training

19．A．if　　　　　 B．that 　　　 C．then　　　　 D．when

20．A．please　　　 B．try　　　　 C．practice　　 D．enjoy