1. The problem is to fill in the blanks with suitable prepositions in the given sentences. 2. The sentences are: - He lives ______ (in / on) a beautiful cottage _______ (beside / besides) the river. - There is a pathway _______ (between / among) the two flower beds leading ______ (to / from) the cottage. - He has been living there ________ (since / for) his childhood. 3. Important rules for prepositions: - Use "in" for enclosed spaces or places. - "Beside" means next to, while "besides" means in addition to. - "Between" is used for two items, "among" for more than two. - "To" indicates direction towards something, "from" indicates origin. - "Since" is used for a point in time, "for" is used for a duration. 4. Applying these rules: - He lives **in** a beautiful cottage **beside** the river. - There is a pathway **between** the two flower beds leading **to** the cottage. - He has been living there **since** his childhood. 5. Final filled sentences: - He lives in a beautiful cottage beside the river. - There is a pathway between the two flower beds leading to the cottage. - He has been living there since his childhood.