Unitl tens of years ago, most zoos in su
题型:选择题
问题:
Unitl tens of years ago, most zoos in such a way—animals in one area and birds in another.
A.were organized
B.had organized
C.will organize
D.have been organized
Unitl tens of years ago, most zoos in such a way—animals in one area and birds in another.
A.were organized
B.had organized
C.will organize
D.have been organized