单项选择题
A．By expanding their minds and horizons. B．By financing their elementary education. C．By setting up a small primary school. D．By setting them an inspiring example.
A．offering senior citizens discounts has become routine commercial practice B．senior citizen discounts have enabled many old people to live a decent life C．giving senior citizens discounts has boosted the market for the elderly D．senior citizens have to show their birth certificates to get a discount
A．crime against humanity B．unfair business transaction C．racial conflicts in Georgia D．racial segregation in America