读短文，完成任务。
1．选择合适的单词填空，完成短文。每空一词，其中有两词多余。
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We can see ______ in streets, in parks and in schools. Some of them tell us what we should do. This one has a picture on it. It’s near a school. It means: Look out for ______. Some tell us what we shouldn’t do. We can see “No ______” in public places to tell people not to smoke. Some tell us where to go. For example, we can see the word “UNDERGROUND” in the ______ of this one. It tells us where to find the underground station. They are ______.
2．阅读短文，在文章中提到的标志后打“√”。
A.
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( ) E. 
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