Identify the segment in the sentence which contains the grammatical error.
They have been playing cricket since 3 and a half hours.
Correct Answer : c ) since 3 andExplanation :
To make reference to a period, the preposition ‘for’ is used. For example: for 2 weeks, 5 days, etc.
‘Since’ is used to refer to the point of time or origin.
For example- since 1990.
Therefore, instead of ‘since’ we will use ‘for’.
Hence, option c is the correct answer.