The house was ------- the Thames.
-
beside of
-
besides
-
beside
-
beside from
C
Correct answer
Explanation
The correct phrase is 'beside the Thames', meaning 'next to' or 'at the side of'. 'Beside' is a preposition indicating location. 'Besides' (with an 's') means 'in addition to' or 'other than'. The forms 'beside of' and 'beside from' are grammatically incorrect - 'beside' doesn't require these additional prepositions.