Mr．Robinson never went to see a dentist, because he was afraid, but then his teeth began aching a lot, and he had to see a dentist．The dentist did a lot of work in his mouth for a long time．On the last day Mr．Robinson asked the dentist, “How much is all the work going to cost?” “Twenty-five dollars,” said the dentist．But he didn't ask him for the money．
After a month ，Mr．Robinson phoned the dentist and said, “You haven't asked me for any money for your work．” “Oh,” the dentist answered, “I never ask a gentleman(绅士)for money．” “Then how do you live?” Mr．Robinson asked．“Most gentlemen pay me quickly, the dentist said, “but some don't．I wait for my money for two months, and then I say, ‘That man is not a gentleman,' and then I ask him for my money．
(1)
Mr．Robinson ________ until his teeth began aching a lot．
[ ]
A．
wasn't afraid
B．
didn't see a dentist
C．
wanted to see a dentist
D．
went to see a dentist
(2)
________ cost twenty-five dollars．
[ ]
A．
The first day' work of the dentist
B．
The last day's work of the dentist
C．
Half the dentist's work
D．
All the dentist's work
(3)
When did Mr．Robinson phone the dentist?
[ ]
A．
After he paid him．
B．
About thirty days later．
C．
After two months．
D．
About twenty days later．
(4)
The dentist said that he never asked ________ first．
