These cars are brown.说成These are brown cars.语法上存在错误吗?

These cars are brown.说成These are brown cars.语法上存在错误吗? These cars are the ----(play) What colour are these cars? 是Are they cars还是Are these cars? Are these cars or buses?回答 W c are these cars?G . These cars are built by b_________. These cars are made()the workers () shanghai These are American cars 改成单数 Are these toy cars 做肯定回答 Are these cars?作肯定回答 These boxes are brown.变单数