Does the punctuation mark at the end change the meaning and intonation? Do we have similar structures like 'Who's a clever girl!", where the word order suggests the interrogative sentence?
Both "Who's a clever girl!" and "Who's a clever girl?" are correct, but they have different meanings.
The exclamation point (!) after "Who's a clever girl!" makes it an exclamation, which means it is expressing strong feeling or emotion. In this case, the emotion is surprise or delight at the girl's cleverness.
The question mark (?) after "Who's a clever girl?" makes it a question, which means it is asking for information. In this case, the question is asking who the clever girl is.
In general, it is more common to use the exclamation point when you are expressing strong emotion, and the question mark when you are asking for information. However, there are always exceptions to the rule, and sometimes it comes down to personal preference.
Here are some examples of how the two phrases could be used:
"Who's a clever girl!" exclaimed the mother as her daughter solved a difficult math problem. "Who's a clever girl?" asked the father as he watched his daughter build a complex Lego structure. In the first example, the mother is expressing her surprise and delight at her daughter's cleverness. The exclamation point emphasizes the strong emotion she is feeling.
In the second example, the father is simply asking who the clever girl is. The question mark indicates that he is seeking information.
Ultimately, the best way to decide which phrase to use is to consider the context and the meaning you want to convey.
Does the punctuation mark at the end change the meaning and intonation?
Do we have similar structures like 'Who's a clever girl!", where the word order suggests the interrogative sentence?
I'm not sure what you mean. The exclamation mark indicates that it is not a question.
The question mark signifies (not unreasonably) a question that requires an answer.
The exclamation mark signifies a rhetorical remark - no response is required - it is basically an emphatic statement.