Fill in the blanks with suitable prepositions.
We shall meet the client _______ five _______ the evening.
The prepositions of time ‘at’, ‘in’ and ‘on’ are used for denoting different units of time. ‘At’ is used to refer to an exact time; ‘in’ is used denote a part of the day, month or season and ‘on’ is used to refer to a day or date. In the given sentence ‘five’ is specific time while ‘the evening’ is a part of the day. Therefore option B is correct, whereas options A, C, and D are incorrect.