问题
选择题
There ______ a lot of red-crowned cranes in other parts of the world many years ago. [ ]
A. is
B. are
C. was
D. were
答案
答案：D
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There ______ a lot of red-crowned cranes in other parts of the world many years ago. [ ]
A. is
B. are
C. was
D. were
答案：D