单项选择题
A．At five a.m. B．At four p.m. C．At four a.m. D．At five p.m.
A．2:15. B．3:15. C．2:50. D．3:50.
A．The woman doesn’t like smoking. B．This is a non-smoking area. C．The place is air-conditioned. D．Nobody smokes here.