Final answer:
The phrase 'To see what was inside' is not a complete sentence because it lacks a subject and a full predicate. In literature, such phrases may set the scene for exploration or discovery. A complete sentence example would be 'I opened the box to see what was inside.'
Step-by-step explanation:
The phrase "To see what was inside" does not constitute a complete sentence because it lacks a proper subject and a full predicate. A complete sentence requires at least a subject (who or what the sentence is about) and a predicate (what the subject is doing).
For example, in literature and writing, characters might express a desire to explore or discover the unknown, such as Harry's curiosity which leads him to look into something unfamiliar, or the exploration of a room where every detail slowly emerges as the eyes adjust to the light. In these contexts, authors create intrigue and engage readers by revealing characters' explorations and their reactions to new sights or discoveries.
When learning English, understanding sentence structure is important for writing clearly and effectively. The mentioned phrase needs more information to be a complete sentence, like "I opened the box to see what was inside."