Which is correct:

She is in her office.
or
She is at her office.

Both are correct.

She is in her office implies that she is physically within the walls of her private office.

She is at her office implies that she's away from home and within the walls of the building where she works.

Well, let's see. If she's "in" her office, that could mean she's locked in there with a mountain of paperwork. On the other hand, if she's "at" her office, she could be lounging by the coffee machine and avoiding said mountain of paperwork. So, both could be correct, depending on what you want to emphasize. Or maybe she's halfway in and halfway out, in which case we might have a bigger problem on our hands!

Both "She is in her office" and "She is at her office" can be considered correct, but the usage may vary depending on the context.

1. "She is in her office" suggests that the person being referred to is inside the physical space of their office. This implies that she is currently present and possibly working or engaged in work-related activities.

2. "She is at her office" indicates that the person is located at their office, but it does not specify whether she is physically inside or outside the office. This could mean that she is either inside the office, nearby, or in the general vicinity of the office.

Ultimately, the choice between these two phrases depends on the specific situation and what you want to convey.

Both "She is in her office" and "She is at her office" are grammatically correct, but they can convey slightly different meanings based on context.

"She is in her office" suggests that the person is physically inside the office. It implies that she is located within the space of her office.

"She is at her office" implies that the person is present or located at the office. It does not necessarily indicate whether she is inside the office or in the vicinity of the office.

To determine which phrase is more appropriate in a given situation, consider the intended meaning and the specific context of the person's location. For example, if you want to convey that she is physically inside the office, the phrase "She is in her office" would be the more suitable choice. On the other hand, if your intention is to indicate that she is present or available at the office, "She is at her office" would be more appropriate.

It is important to note that regional preferences and individual writing styles may influence the choice of one phrase over the other, so it is best to consider the specific context and your intended meaning to make the appropriate choice.