单项选择题The residents, _________ had been damaged by the flood, were given help by the Red Cross.
单项选择题He made such a _________ contribution to the university that they are naming one of the new buildings after him.
单项选择题The recipe said to use butter, but as we'd run out we had to _________ with margarine.
单项选择题Where this plan _________ is on the small amount of time it allows for possible delays.
单项选择题I let my children make their own decisions _________ they're older: I wouldn't presume to interfere.