Is your brother speak English这句话哪错了

Is your brother speak English这句话哪错了 Is your brother speak English?找错,改! is your brother speak english?有错吗 Is your brother speak English?改错 Is your brother speak English?(改错) 改错 Is your brother speak English Is your brother speak English.三单形式错在哪? Is your brother speak Engliash?哪里错了 1.Is your brother speak English?有什么错误? 改错.Is your brother speak English?我觉得应把Is改为CAN因为speak English Is your sister speak English?中有什么地方错了? 改错：1.Is your brother speak English?2.Mr.Wu teach us English.