You are given an English sentence with a blank, and you need to predict the missing word. After completing, the whole sentence should be gramatically correct and non-ambiguous.

chapter one missus rachel lynde is surprised missus rachel lynde lived just where the avonlea main ____ dipped down into a little hollow fringed with alders and ladies eardrops and traversed by a brook
road

madame danglars ____ shuddered at the desolate aspect of the mansion
involuntarily

and that if she noticed anything odd or out of place she would never rest until she had ferreted out the whys and wherefores thereof there are plenty ____ people in avonlea and out of it who can attend closely to their neighbor's business by dint of neglecting their own
of