People in many countries grow fresh water fish from eggs. They move the small fish into lakes and rivers. The fish live and (21) ___________ there. People go (22) ___________ in these lakes and rivers. They enjoy catching fish because fish is also good food. Now the Japanese grow salt water fish. Most of them are yellow tail fish. Workers grow the fish from eggs. Every time they feed the fish, they play (23) ___________ of piano music. The fish (24) ___________that piano music means food. When the fish are small, the Japanese put them into the ocean near the land. The fish find some of their (25) ___________ food. Workers also feed them. They play the same piano music. The fish (26) ___________know the music. They swim toward it and (27) ___________ the food. In (28) ___________months the fish are large. The Japanese play the same music. The fish swim toward it and the workers (29) ___________ them. The Japanese get about 15 percent of their seafood (30) ___________farms in the ocean.
21. A. bread B. born C. grow D. develop
22. A. enjoying B. fishing C. shopping D. catching
23. A. songs B. films C. tapes D. lot
24. A. think B. recognize C. realize D. learn
25. A. own B. own’s C. self D. self’s
26. A. recently B. mostly C. nearly D. already
27. A. see B. find C. bite D. hold
28. A. few B. a few C. couple D. many
29. A. grasp B. catch C. seize D. hold
30. A. on B. of C. from D. in