I had answered this but it deleted it I am so sorry.
Have they taken the house key with them is the correct answer
Who is the correct answer
Well, it is asking you to compare Sarah's limping to something.
There are many possible answers, just think of things that limp.
Sarah limped along the road like an injured dog.
Sarah limped along the road like someone with a broken foot.
Sarah limped along the road like an elderly woman.
