I feel completely exhausted when I've listened to Marion for half-an-hour. A. It is completely exhausting after half-an-hour I listening to Marion. B. Half-an-hour listening to Marion leave

It is completely exhausting after half-an-hour I listening to Marion.

Half-an-hour listening to Marion leaves me feeling completely exhausted.

Feeling completely exhausted, I spent half-an-hour listening to Marion.

When I've listened to Marion for half-an-hour, she feels exhausting completely.