问题
选择题
You _____ a teacher. I _____ a student. My sistera _____ student, too. [ ]
A. am; is; are
B. is; are; am
C. are; am; is
D. are; is; is
答案
答案：C
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You _____ a teacher. I _____ a student. My sistera _____ student, too. [ ]
A. am; is; are
B. is; are; am
C. are; am; is
D. are; is; is
答案：C