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
正确答案是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
正确答案是D