1. Before entering the house, the doctor _____.

[     ]

A. asked the lawyer for 500 dollars
B. didn't know if the lawyer would keep his word
C. was reassured (使消除疑虑) by the lawyer

2. Because the lawyer's wife was badly ill, the doctor _____.

[     ]

A. did nothing for her
B. spent a lot of time on her
C. found it impossible to cure her

3. After the lawyer's wife died, the doctor got _____.

[     ]

A. nothing but the money for medicine
B. ＄500
C. no money at all

4. If the doctor had cured the lawyer's wife, he would have got _____.

[     ]

A. more than ＄500
B. nothing
C. the payment