Use the following words appropriately in the given sentences talk/hesitate/gain/misunderstand/see/live.
The audience appeared ... my message.
The old couple were really happy ... in their old house by the sea.
This young hopeful man seemed ... everything he wanted.

The audience appeared to misunderstand my message.
Explanation: The word "misunderstand" means to not fully grasp or comprehend something correctly. In this sentence, it suggests that the audience did not fully understand the speaker's message.

The old couple were really happy living in their old house by the sea.
Explanation: The word "living" refers to the act of residing or dwelling in a specific place. Here, it indicates that the old couple were content and pleased with their lives in their house by the sea.

This young hopeful man seemed to gain everything he wanted.
Explanation: The word "gain" means to acquire or obtain something, generally with effort. In this context, it implies that the young man achieved or accomplished whatever he desired.

Please note that there are different ways to use these words in the given sentences, and these explanations provide one possible interpretation.