The word to be used that best completes the statement would be "had been having." The word is considered at a past perfect continuous state. This state of the verb should be used when indicating an action that was continuously done in the past. Simply and the progressive tense of the verb by "had been."
The Northwest Passage achieved the crossing from the Atlantic Ocean to the Pacific Ocean through the Canadian Arctic Archipelago. Crossed completely by Norwegian explorer Roald Amundsen from 1903 to 1906, the passage opened a new trade route for Europeans. Before that, the Vikings had used the passage as a trade route with the Inuits.
In 1609, Henry Hudson's voyage along the Hudson Bay triggered a Dutch settlement in New York and the area around the Hudson River.
Answer: Old master provide evidence that the author was enslaved.
Explanation: My explanation is that he also said he had to run errands and only had little time to enjoy thr life they had.
It's subordinate. Meaning that it is dependent on the main clause.