1 getting getting?
2,3,4 are fine.
5 is OK, but it may not be what you meant to say. 'it' would probably refer to some object, such as a step, that she used to be able to get(climb) over.
6 is awkward. Perhaps 'use...' or 'put the ....verb in the sentence/space'.
7 is probably ok, depending on what the ellipsis refers to.