Our offer _____ and remains good untill 12:00 A.M. July 12, 2003, Beijing Time.
A.are firm offers B.are firm offer C.is firm offer D.is a firm offer正确答案D
Our offer _____ and remains good untill 12:00 A.M. July 12, 2003, Beijing Time.
A.are firm offers B.are firm offer C.is firm offer D.is a firm offer正确答案D