阅读理解。
John is a bookseller . He doesn’t like paying for anything . One day he leaves a box of books on his foot . “ Go to the doctor .” says his wife . “ No ,” he says , “ I’ll wait till the doctor comes into the shop next time . Then I’ll ask him about my foot . If I go to see him , I’ll have to pay for him . ”
The next day the doctor comes into the shop and buys some books . When John is getting them ready , he tells the doctor about his foot . The doctor looks at it , “ Yes , ” says the doctor , “ You must put the foot in hot water every night . ” “ Thank you , ” says the bookseller , “ And now sir , here are your books . ” “ How much ? ” says the doctor , “ Two pounds , ” answers John . “ Good , ” says the doctor , “ I shall not have to pay you anything . ” “ Why ? ” asks John in surprise , “ I tell you about your foot . I want two pounds for that . Goodbye . ”
（1）John is a        .
A. worker    B. doctor    C. book maker    D. bookseller
（2）The bookseller’s wife tells him to        .
A. wait for the doctor coming
B. go to the doctor
C. be careful when he does things
D. ask the doctor to come
（3）The doctor comes into the shop to        .
A. buy some books
B. look at John’s foot
C. pay John some money
D. look at medicine books
（4）When does the bookseller tell the doctor about his foot ?
A. When the doctor comes into the shop .
B. When he is getting the books ready .
C. After he hands the books to the doctor .
D. After the doctor has books in his hand .