Tom, clean up the broken glass _________ someone walks on it.
With the guide _______ the way, we finally got to the village which we were looking for.
I think they’ve got to the very point _______ a change is needed, or they will fail.
He had no sooner arrived there ________ pestering his doctor.
. While shopping, people sometimes can't help _______ into buying something they don't really need.
With no one to ______ in such a frightening situation, she felt very helpless.