1. I waited for her to finish a telephone conversation.
2. They were engaged in conversation.
3. Her conversation was laced with witty asides.
4. The conversation went off on a tangent.
5. I saw him in a conversation with a friend.
这些句子涵盖了"conversation"的基本用法，包括电话交谈、与人交谈、谈话内容以及谈话的偏离等。希望这些例子对你有所帮助。