A．Because Dr. Johnson is busy tomorrow. B．Because Dr. Johnson won’ t come to his surgery tomorrow. C．Because Jack is on duty tomorrow. D．Because Jack is busy tomorrow.
单项选择题What is the probable relationship between the two speakers （）
A．Manager and clerk. B．Director and secretary. C．Doctor and nurse. D．Professor and student.
单项选择题How long has the woman been ill（）
A．About a day. B．About two days. C．About a week. D．The speakers don’t tell us.
