阅读下面短文, 完成表格中所缺的信息，每空一词。

    Travelling is a very good activity. When you get tired of your work or study, and when you have free time, you can go to a beautiful place to enjoy the beauty(美丽) of nature(大自然) or other cities. You can take in fresh air, meet different people and make friends with them. It's good for your health to do so.

    But sometimes, travelling is not an enjoyable thing. For example, the weather can be changeable. There may be rain when you travel. You may catch a cold or be ill while travelling. The worst(最糟糕的) thing is that the thieves may steal(偷) your money. All these may happen to a traveler.

    When you go on a trip, you must get everything ready. Firstly, you must have clear information about the weather. Secondly, ask a friend to go with you so that you can help each other. Thirdly, you must be careful everywhere and try not to cause accidents（引起事故）. If you do these, you will enjoy your travel.

下面短文有10处语言错误，请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（＾）.并在其下面写出该加的词。

删除：把多余的词用斜线(\)划掉，

修改：在错的词下划一横线，在该行右边横线上写出改正后的词。

注意：1）每处错误及其修改均仅限一词.

       2）只允许修改10处，多者（从第11处起）不计分

    Two years before, I traveled to Brazil and 1 rented for a car. Unfortunate, I had an accident and hit another car, and I needed to stay in a hospital for at least two week. I called my parents, so I did not tell them what had happened. I knew that they will be worried about myself because I was so farther away, and that my mother would not sleep if she knew. Therefore, I told them interested stories and how 1 was enjoying Brazil. As a result, nobody knew truth. I still think that it was the right thing to do.

ABCD，∠EDA=90°，且ED=AD=2AF=2AB=2．

（Ⅰ）证明：平面ABE⊥平面EBD；

（Ⅱ）点M在线段EF上，试确定点M的位置，使平面MAB与平面ECD所成的角的余弦值为 $\frac{\sqrt{3}}{4}$ ．