You can pay now or ______ you come back to pick up the bike.
—Did you catch the train?—No. _________,I would have.
I remember seeing the boy somewhere before, but his name _________— me for the moment.
He was _________ when he lost all his money. Luckily, a warm-hearted man helped him generously.
No sooner _________ home than it began to rain heavily.
It was not until he lost all of his friends _________ he realized the importance of friends.