I suggest they _______ at once.A. setting off B .to set off C. set off D have set off
--- How do you find _________ birthday party of the Blairs? --- I should say it was __________ complete failure.
---Cheer up! Have another go, OK? --- _____________.
Not until he met with the difficulty _______ the importance of group work.
Mary got the first prize in the National Math Competition, ________, for sure, delighted everyone.
______ he had broken the record, he would be a world-famous runner now.