Mr Johnson was having trouble with his __16__  , __17__ he went to see a __18__. The doctor ___19__ his stomach carefully but couldn’t find any problem. Then he said, “Well, Mr Johnson, take it easy. There is __20__ serious(严重). Stop smoking and then you will be all right very __21__.”
“But doctor,” answered Mr Johnson, “I___22__. I don’t like smoking at all.”“ Oh, I see,” said the doctor,” then stop drinking wine(酒) __23__.”
“ But I don’t drink wine,” answered Mr Johnson.
“ Don’t drink __24__ tea or coffee then,” the doctor said to him.
“ I __25__ drink water,” answered Mr Johnson, “I don’t like tea or coffee.”
The doctor __26__ for a while and then said,” Well, what __27_ you like to eat then?”
“ Potatoes! I like potatoes very  __28__..” Mr Johnson answered at once.
“All right, Then stop __29___ potatoes.” Said the doctor as he got up to say goodbye __30___  Mr Johnson.

While I was waiting to go into university, I saw in a newspaper a teaching job wanted at a school about ten miles from where I   16 . Because I was in great need of   17  and wanted to do something useful, I applied(申请).
Three days later, a letter   18 . It asked me to see the   19  at Croydon. It proved to be a(n)   20  journey —a train to Croydon station, a ten-minute bus ride and then a walk of   21  a quarter of a mile. As a result I arrived there, feeling too hot to be nervous. Clearly, the principal   22  opened the door. He was   23  and round.
“The school” he said, “has a group of twenty-four boys between seven and thirteen.”
I should have to teach all the   24  except art, which he taught himself. I should have to divide the class into  25  groups and teach them at three different   26 , and I was not    27  at the thought of teaching maths —a subject which I didn’t do very well in at school. It was   28  that I had to teach them on Saturday afternoon   29  most of my friends would be   30  themselves at that time.
Before I had time to ask about my salary(薪水), he got up to his feet. “Now,” he said. “you’d better meet my wife. She is the one who really runs this school.”