Question

Fill in the blanks with suitable prepositions:
________ days she remained ________ a deep coma.

• A. On / at
• B. Since / in
• C. For / in
• D. For / No preposition
  

Answer 1

The correct option is

A. For / in

We use 'for' here, because we do know for how many day exactly she was in coma. 'Since' is used where the span time is particularly and clearly mentioned, which is not the case here. We use 'in' because it indicates her state of being of that specific time period.