I’m sorry you’ve been waiting so long, but it’ll still be some time _____ Brian gets back[ ]

There is no way to get to the small islandwhere my grandparents live _____ by boating

The entire organization has to be ready to all of these changes at a moment’s notice.

I had just stepped out of the bathroom and was busily drying myselfwith a towel __________ I heard the steps.

People have heard _______ the President has said; they are waiting to see _______ he will do