The theory is supported by the fact that, so far, none of the stolen cars have been returned. Also, the amount of money demanded — under 3 , 000 Taiwan dollars — seems too little for a c ar worth many times more. Demands for pigeon - delivered money stopped as soon as the press reported the story. And even if they start again, Chen holds little hope of catching the criminal . “ We have more important things to do , ” he said. 9. The und erlined word “they” in the last paragraph refers to____________ .