语法填空 阅读下面短文,在空白处填入适当内容 (1 个单词 ) 或括号内单词的正确形式。 You ’ ve seen a lot of unlikely animal friendships. However , nothing comes close to seeing an American black bear , __1. __ African lion and a Bengal tiger ( 孟加拉虎 )living together in harmony. They have spent the last 15 years at an animal shelter in Georgia( 格鲁吉亚 )after being rescued. The bear, the lion and the tiger __2. __ (rescue)in 2001 from the basement of a house in Atlanta. They __3. __ (spend)every happy day together ever since. They were too __4. __ (injure)to be returned to the wild. __5. __ (come)from three different continents , such animals would never meet each other in the wild. But despite their __6. __ (vary)differences, the animals get along like brothers and are __7. __ (complete)inseparable( 形影不离的 ) . They play together, have __8. __ (meal)together and sleep together. __9. _ sometimes one of them may get angry, usually by stepping on __10. __ (they)tails or stealing toys, etc., they have never injured one another. About 99.9% of the time, they are very gentle with each other.