I am sorry you’ve been waiting so long, but it will still be some time __________ Brain gets back from his holiday

Had she ____her promise,she wouldhave made it to Yale University.[ ]

My sister _____ the league last month and she has decided to ______ the activities to help the aged in town next week. [ ]

Though the novel had a happy ending, the readers were left ____.

So quickly are science and technology advancing ____ is a possibility today may be a reality tomorrow.