Without a word to Tom, Mary grabbed the tray with the leftovers of her Smoky Grilled chicken and dumped it into the bin. Back at/in her seat, she shouldered her backpack.

Which is the correct option and why? (Or maybe both are correct?)

1 Answer 1


At a seat means you are near the seat but not necessarily sitting in the seat.

Did she sit down and then put on her backpack? Then she did it in the seat.

Did she go near her seat, where she left her backpack, and take it and put it on while standing up? Then she did it at the seat.

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