----- Can I go back home now? ----- You______ to leave until you ______ your work.
The old man tried to save more money ______ he could contribute some to the flood victims.
The manager suggested the workers’ pay ______ by 10 percent.
The spokesman said that the poor safety standards were ______ for last Sunday’s accident.
It was ______ that caused her to serve dinner an hour later than usual.
Neither I nor Amy ______ to attend the business conference if we are busy.