单项选择题
A.Driving a car. B.Listening to a radio. C.Making a phone call. D.Giving a lecture.
A.I go to school by bus. B.I’m afraid not. C.Yes, this is No. 23 bus. D.I’ll not take No. 23 bus.
A.At the department store. B.At the church. C.At the grocery. D.In the garden.