根据下面短文内容，在短文的空格处填上一个恰当的词，使短文完整、通顺。
Whenever we see something new, we wish to write it down in one form or another. We will be happier if we share (分享) our experience with others. Then 1 can we write better travel stories? The following may be helpful.
Memory and notes
Don't believe your memory. You may have a good memory, 2 you cannot remember everything. You are seeing and hearing so much information while you're on a trip. When you return to write about your travel stories, you may forget something. So you should make notes, take photographs, and if 3 , take videos. In this way, you can describe your travel and write it down 4 missing anything.
Photographs and your stories
Photographs are very useful for you to remember what you have seen. As you see the photographs, you can describe your experiences easily by remembering how you felt when you took 5 .
When you are writing about your travel stories, make sure they are not too short as your reader may not get the full impression (印象) of them and make sure they are not so 6 that the reader may get bored.
Popular factors (因素)
Make sure your stories have popular factors and the reader will find your travel stories not only pleasant to 7 , but useful as well. Popular factors are food to eat, places to stay and the things to look out for while 8 . They should also include what you've found useful and the things you miss so much.
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解析：这是篇说明文。介绍了几种写好游记的方法。
【小题1】这是一个疑问句，缺少疑问词。下面几段内容都是为如何写好游记做的准备，因此用how提问。
【小题2】前面的“好记忆”与后面的“记不住”，意思转折，用but。
【小题3】if possible “如果有可能的话”。
【小题4】用各种办法记下来，不会丢掉任何东西。后面是动名词，需要一个否定介词。
【小题5】take photographs “拍照”，此处用代词them来代替，因为是复数，动词之后，用宾格。
【小题6】这里说的是travel stories。前面说太短了，会使读者没完整的印象；后面与之相对应：太长，会让读者厌倦。
【小题7】这里是“形容词+不定式”，读者是“读”游记的，因此用read。意思是：读起来愉悦。
【小题8】前面几项都是旅行中的事情，因此，用travel。while在此处是介词，需要用动词的动名词形式。