单项选择题
Conversation 2
A.About 2 hours. B.About one hour. C.Around 1.5 hours. D.Around 2.5 hours.
A.On the right to the post office. B.Opposite to the post office. C.On the left to the post office. D.Far away from the post office.
A.An hour. B.75 minutes. C.A quarter. D.90 minutes.