He went to argue against the topic of debate.
There is much more that can be said on this topic.
I have been doing research on this topic for ten years.
He made an effort to turn the talk to another topic.
He discussed this topic with me yesterday.
The speaker digressed from his topic several times.
He can speak on any topic extempore.
Let’s change the topic.
Why didn’t someone bring that topic up?
Corruption is the topic of the day.
He never goes deeper into any topic.
Please leave this topic.
Collect ideas that are suitable to the topic.
Decide what you want to say about the topic.
What was the main topic of conversation?