问题
选择题
The BY2 girls-Miko and Yumi ______twin (孪生的) sisters. [ ]
A. am
B. is
C. are
D. be
答案
答案：C
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The BY2 girls-Miko and Yumi ______twin (孪生的) sisters. [ ]
A. am
B. is
C. are
D. be
答案：C