The _____ fur trade dominated economic interests in early Canadian history.
_ E _ _ _ _
What is a small mammal that begins with B and lives in swampy areas.
senior
beaver
The answer to your question is "The HBC fur trade dominated economic interests in early Canadian history."
To figure out the missing letters, you can approach this by thinking about the context of the question. In early Canadian history, fur trade played a significant role in shaping the economy. One of the major players in the fur trade during that time was the Hudson's Bay Company (HBC).
Therefore, taking the first letter as "H" and the last letter as "C," we can fill in the remaining gap as "B" and conclude that the missing letters are "HBC."