Q. Choose the appropriate prepositions to fill in blank :
A train has been running ……….. two hours.
A train has been running ……….. two hours.
✅ Correct Answer: (B)
For
Explanation:
Use "for" when referring to a duration of time (e.g., for two hours, for five days).
Use "since" when referring to a point in time (e.g., since 10 a.m., since Monday).
Explanation by: Ahsan Sultan
Use "for" when referring to a duration of time (e.g., for two hours, for five days).
Use "since" when referring to a point in time (e.g., since 10 a.m., since Monday).