阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。

Most people hope to have a better memory which helps them succeed in study, work and life. 【小题1】? Luckily, hundreds of studies in the past 50 years have already given us a clear answer.

A healthy lifestyle keeps your brain young and memory sharp. First of all, it is necessary to have a healthy diet. Eating more food rich in Vitamin B and Vitamin E helps you have a better memory. Doing exercise can keep your brain alive, too. Proper exercise provides much needed oxygen for the brain. Running, swimming and even walking two or three times a week are helpful. 【小题2】. Only when your brain gets a good rest, can it work well. The healthier your lifestyle is, the better your memory will become, but do not expect a sudden change-it takes a long time to make a difference.

【小题3】. The following are some widely used skills. Chunking is a way of remembering a piece of information by cutting it into smaller ones. For example, to memorize a ten-digit telephone number 2127983630, you can divide the digits into three groups: first 212, then 798, and lastly 3630. It is far more effective than remembering a string of 10 digits. Organization means organizing information into groups of the same kind. For example, trees, grass and flowers are plants; tigers, pandas, horses and cows are animals. Imagery is remembering newly learnt information by using your imagination and connecting it with something that you are familiar with. Teaching is a simple way to train our brains to be more effective. 【小题4】. Teaching strengthens the understanding. So teach the concepts to someone else. It can be a real person in a study group, or you can just imagine that someone is listening to you as you teach.

In fact, memory skills will hardly work if you don’t understand the information. What’s more, only a regular review(复习) can make the memory last long. That is why students are always advised to go over what they have learnt after one day and then after three days, 【小题5】.

A．and then use it as regularly as possible.

B．Moreover, getting enough sleep is important.

C．you can certainly improve your memory.

D．Memory skills help you remember things better.

E．need nutrients and exercise to become stronger.

F．Can memory be improved?

G．Because in order to teach something, you need to understand it.