单项选择题
A．To protect persons and property. B．To collect taxes. C．To teach and train citizens. D．To save natural resources for future use.
A．She can tell Joan when she sees her at noon. B．She should tell .loan’’s brother about the reception. C．She must call on Joan after the reception. D．She may see Joan’’s brother at lunch.
A．The woman is driving too fast. B．The woman is driving at a slow speed. C．The woman has broken a traffic rule. D．The woman has parked her car in a wrong place.