单项选择题
From a ______ we buy the various things needed to run a house--tea, sugar, cheese, cleaning materials, etc.
单项选择题 Other specific properties ______ equal, iron heats up faster than aluminum.
单项选择题 After driving for thirty miles, she suddenly realized that she ______ in the wrong direction.
单项选择题 The president was expected to ______ some suggestions after reading all those reports.
