Last week my parents and I took a twoday trip to Emei
Mountain in Sichuan. As everyone knows, it's famous 76.
mountain with all kinds of plants and animals. The weather 77.
was fine. It was about noon we arrived at the foot of 78.
the mountain. The three of them were very excited. As we 79.
climbed the mountain, we fed monkeys, visiting temples 80.
and told stories. On the way up I was busy taking picture 81.
since the scenery was so beautiful. The time passes quickly. 82.
Evening came down. We spent the night in a hotel at the top 83.
of the mountain. The food was expensive and the service was 84.
good. I was so tired that I fell asleep at the moment my 85.
head touched the pillow.76.famous前加a
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(答案→)76.famous前加a
解析：
76.famous前加a 此题考查冠词的基本用法。mountain是可数名词，这里是泛指，所以要加不定冠词a。
77. √
78.noon后加when 此题考查连词的基本用法。It was about noon和we arrived at the foot of the mountain都是简单句，必须用复合连词when把它们连接起来，构成时间状语从句。
79.them→us此题考查代词的用法。这篇短文叙述了作者和他的父母亲一起去旅游，这里指的是“我们”，而不是“他们”。
80.visiting→visited此题考查动词时态。并列连词and连接的是三个谓语：fed, visited和told。
81. picture→pictures此题考查名词的数。picture是可数名词，从下文中since the scenery was so beautiful可以看出，作者拍了不止一张照片。所以要用复数。
82.passes→passed此题考查动词时态。作者和他父母亲旅游的时间发生在过去(Last week)，所以要用一般过去时。
83.划掉down此题考查副词的用法。Evening came的意思是，到了夜晚。不能用came down。
84.and→but此题考查连词的基本用法。食物贵(The food was expensive)与服务好(the service was good)之间是转折关系，不是并列关系。
85.划掉at此题考查介词的用法。the moment(that)可以引导时间状语从句，意思是“一…就”，前面不用介词at。在这个句子中，省略了that。