单项选择题
A chart showing all staff positions and responsibilities （） prepared by the Vice President.
A.was B.has C.were D.have
单项选择题 The trading company （） a big loss raised a claim against the exporter.
单项选择题 The numbers in the key do not correspond （） those in the lessons.
单项选择题 Send your questions to Mary Adams,（） is the director of Public Relations,for a quick reply.
