问题
选择题
Students in Grade ________ are called ________ in the USA.[ ]
A. 12; senior
B. 12th; junior
C. 12th; juniors
D. 12; seniors
答案
答案：D
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Students in Grade ________ are called ________ in the USA.[ ]
A. 12; senior
B. 12th; junior
C. 12th; juniors
D. 12; seniors
答案：D