单项选择题
A.Doctor and patient.
B.Manager and clerk.
C.Secretary and visitor.
D.Teacher and student.
单项选择题 The objective of this report is to summarize the achievements we've made as well as the setbacks we've experienced in the past year.()
单项选择题 The Aristotle example is used to make the point that()
单项选择题 I'd offer to pay for Mary if I thought she wouldn't be offended, but it's a rather delicate issue.()