Mr. Johnson 1____ a factory. He once 2_____ on TV that animals could be taught to 3_____ some work for people if they were given 4_____ to eat. He 5______the idea. He 6_____ it would be 7______ to have a dog look after his 8_____ and an elephant do some heavy jobs 9______ his factory. He bought a dog 10 ______an elephant in the market and decided to teach them to do some work 11_____ him. Of course. he 12______bought a lot of food for them. Several 13_____ later，the dog and the elephant 14 ______fatter and fatter，but they 15_______ do any work for him. At last，Mr. Johnson had to give up.
A. have            B. had               C. work
A. saw             B. asked             C. met
A. make            B. do                C. 1et
A. someone          B. nothing           C. something
A. loved            B. disliked            C. hated
A. told              B. thought             C. talked
A. bad              B. good              C. 1ate
A. house            B. shirt              C. eyes
A. in               B. above               C. under
A. but              B. or                  C. and
A. for               B. to                  C. of
A. also              B. never               C. yet
A. years            B. hours               C. months
A. smelt            B. sounded             C. became
A. mustn’t            B. couldn’t            C. shouldn’t