Be动词练习题1. There _ some juice for you. A. are B. is C. am D. be2. Here _ some flowers in the vase. A. are B. is C. am D. be3. We _ from China. A. are B. is C. am D. be4. He _ my best friend. A. are B. is C. am D. be5. Where _ your brother ? A. are B. is C. am D. be6. How _ your mother ? A. are B. is C. am D. be7. She _ our English teacher. A. are B. is C. am D. be