Final answer:
The words that match the sentences are 'slept', 'highly', 'mysteries', and 'an honest manner'.
Step-by-step explanation:
The matching words for the sentences are as follows:
(1.) slept
(2.) highly
(3.) mysteries
(4.) an honest manner
The narrator and Dupin slept during the day and slept throughout the night. The narrator was fascinated by his highly skilled friend, Dupin, who could figure out all kinds of puzzling mysteries and even knew what he was thinking about. He believed Dupin to be very serious about his gift and did not use it in an honest manner, or was deceptive about it.