They discussed changing the schedule ____ last week.

They discussed changing the schedule ____ last week.

• A. in
• B. last
• C. during
• D. over

Answer: (C)

Choosing the right preposition to connect the verb with a time phrase is key. Here, the idea is that the discussion happened at some point within a defined period—the week. Using during last week signals that the discussion occurred inside that week, not specifically at the start, end, or across the entire span, but somewhere within it. The other options don’t fit as naturally: in last week isn’t the standard way to pair with a time phrase, last would create awkward repetition, and over last week could imply the discussion stretched across the whole week. So during is the clean, natural choice.

Choosing the right preposition to connect the verb with a time phrase is key. Here, the idea is that the discussion happened at some point within a defined period—the week. Using during last week signals that the discussion occurred inside that week, not specifically at the start, end, or across the entire span, but somewhere within it. The other options don’t fit as naturally: in last week isn’t the standard way to pair with a time phrase, last would create awkward repetition, and over last week could imply the discussion stretched across the whole week. So during is the clean, natural choice.