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Perhaps the biggest problem in Beethoven's life was

1. 
   the gradual loss of his hearing over a period of about twenty years
   
2. 
   the fact that he had to respond in writing to the questions of his friends
   
3. 
   when he lost his two brothers and wrote the "Heiligenstadt" for them
   
4. 
   his sudden and unexpected deafness in the early nineteenth century
   
5. 
   the fact that he was always being compared to the superior Mozart
   

2. 
   Unlike Wolfgang Amadous Mozart,
   

1. 
   Beethoven's music was loved by all sorts of people
   
2. 
   Beethoven wrote music that greatly affected people
   
3. 
   Beethoven refused to perform uncorrected music
   
4. 
   Beethoven's music was never intended to be sung
   
5. 
   Beethoven had to work very hard to write his music
   

3. 
   Beethoven's music is said to.
   

1. 
   have brought about the end of the classical period of music
   
2. 
   have had a great influence on the works of the composer Mozart
   
3. 
   be among the most romantic music ever composed
   
4. 
   have started a new generation of instrumental love songs
   
5. 
   have served as a connection between two different periods of music
   

62 OUR ANIMAL FRIENDS
The human race's progress on the Earth has been due in part to the animals that people have been able to utilize throughout history. Such domesticated animals carry people and their burdens. They pull machinery and help cultivate fields. They provide food and clothing. As pets they may amuse or console their owners. Domesticated animals are those that have been bred in captivity for many generations. While a single animal may be tamed, only a species of animal can be considered domesticated. In the course of time, by selective breeding, certain animals have changed greatly in appearance and behaviour from their wild ancestors. There is a vast difference between the scrawny red jungle fowl of southern Asia and its descendant, the meaty, egg-laying farm chicken. Not all domestic animals are tame at all times. An angry bull, a mother goose, or a mother sow with young piglets can be vicious. Some creatures confined in zoos breed in captivity. The lion is an example. These animals are not domesticated, however, for they remain wild and dangerous.

1.