单项选择题
A．Announce appeals for public service. B．Hold a charity concert to raise money. C．Ask the school radio station for help. D．Pool money to fund the radio station.
A．Physics. B．Mathematics. C．Environmental science. D．Life science.
A．The woman received a phone call from Mark yesterday. B．The man injured Mark in a traffic accident yesterday. C．The man met a friend by chance. D．The woman contacted Mark on business.