判断对错：I asked him who was that boy playing on the ground?

应该是个陈述句,而不应该是个问句。和汉语第三人称转述是一样的。所以后面的句子,也就是宾语从句应该为陈述句语序,而不应该是疑问句语序。句子改正为：I asked him who that boy was playing on the ground。我问他正在操场上玩耍的那个男孩是谁。