请选择CBA,^*D3t7}*O+G;~-C;E Who ______ your English teacher?;O'O6f0x3S;f5^
A. am;O'O6f0x3S;f5^
B. is;O'O6f0x3S;f5^
C. be;O'O6f0x3S;f5^