SCHOOL EDUCATION SYSTEMI. HÃY CHỌN MỘT CÂU TRẢ LỜI ĐÚNG NHẤT

48. Not all the necessary things ______ for our trip that's why the departure ______.

A. will have been bought - has been postponed B. have been bought - has been postponed

C. has been bought - has been postponed D. had been bought - has been postponed