They can only cure him of his illness if they operate on him

They can only cure him of his illness if they operate on him 翻译：Only his courage carried him through his illness . the doctor examined him carefully only -----his illness was They helped doctors to cure one of the worst illness ____ ol They charged the fault on him the doctor needs operate on him 还是needs to operate? he asked his parents if they could give him more money改为直接间接 what do they think of him? the doctor give him some advice on his illness.这里为什么用介词on? They had to hear his account of what had happened to him twi His friends did ____ they could ______ him out of difficulty they all around him