for
To correctly complete the sentence "Roopam hasn't seen her father_______________ last September," we need to choose the appropriate preposition. Let's analyze the options given:
Based on the explanations above, the correct preposition to use is "since". Therefore, the complete sentence should be: "Roopam hasn't seen her father since last September."
Conclusion: The correct answer is "since" because it accurately conveys that the action of not seeing her father started in the past at a specific time ("last September") and continues until the present.
The manager asked the team to complete the project _______ the end of the week.