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　　One day a lawyer's (律师) wife fell ill and the lawyer went to get a doctor. The doctor went to see the woman, but before he went into the house he stopped. He knew that the lawyer never paid his bill (账单). So he said to the lawyer. “But if I cure (治愈) your wife, I am afraid you may not pay me.”

　　“Sir,” replied the lawyer, “here I have 500 dollars. Whether you cure my wife or whether you kill her, I will give you all this.”

　　The doctor was now sure of the payment (报酬) and went into the house. When he reached the woman's bedside, he knew at once that he could do little. She was badly ill, and though he gave her some medicine to take, she soon died.

　　He told the lawyer he was very sorry, and then asked for the money.

　　“Did you kill my wife?” asked the lawyer.

　　“Of course, I didn't.” said the doctor.

　　“Well, did you cure my wife?” asked the lawyer.

　　“I'm afraid that was impossible.” replied the doctor.

　　“Well then, since you neither killed her nor cured her, I have nothing to pay you.”

1．Before the doctor went into the lawyer's house, he stopped because ________.

[　　]

A．he knew well that it was impossible to cure the lawyer's wife

B．the lawyer was too poor to pay his bill

C．he was afraid that the lawyer would not pay him

D．he wanted to get five hundred dollars first

2．When the doctor reached the woman's bedside, he ________.

[　　]

A．found it impossible to cure her

B．did nothing for her

C．examined her carefully

D．gave her some bad medicine to kill her

3．The doctor was very sorry because ________.

[　　]

A．he killed the lawyer's wife

B．the lawyer paid nothing for his work

C．he didn't cure the lawyer's wife

D．he had asked for so much money

4．After the lawyer's wife died, the doctor ________.

[　　]

A．got nothing but the money for the medicine

B．got his pay as the lawyer had promised

C．got no money at all

D．did not dare (不敢) to ask for the money