Question

I haven't called up at home ___ diwali( since/ for) fill in blanck​

Answer 1

The answer is Since

Answer 2

I haven't called up at home since Diwali.

• We are asked to insert an apt preposition in the given blank.
• 'Since' is used to refer to a period of time. On the other hand, 'for' is used to tell about the duration of something.
• In the given sentence, the speaker is revealing that he/she hasn't called up at home since Diwali.