Final answer:
The sentence in question is an exclamatory sentence that expresses a strong emotion about an anticipated enjoyable event, commonly found in literature and dialogues to depict characters' enthusiasm.
Step-by-step explanation:
The sentence 'What a good time we'll have!' is an example of exclamatory sentence in English, which expresses strong emotion or excitement.
Typically, an exclamatory sentence will end with an exclamation mark. This type of sentence is used to convey emotions such as happiness, surprise, or joy, and it often makes a statement about a future event that is anticipated to be enjoyable or significant.
Drawing from the given references, it's clear that the excitement can stem from different social settings such as parties, picnics, family gatherings, or any other collective experiences that promise enjoyment.
In literature and dialogues, exclamatory sentences help to convey characters' emotions and bring vibrancy to the text, indicating that the characters are looking forward to something with great anticipation. These sentences can often be found in lively discussions, vivid descriptions of events, and moments where a character is expressing their pleasure or enthusiasm.