阅读下面短文, 从短文后各题所给的四个选项(A、B、C、D)中, 选出可以填入空白处的最佳选项。
That summer,Luke had been my closest companion for five years.We get lots of1in our area during the summer season.Many forests are badly2by fire each year.That hot summer,not far from our shelter,a forest3 fire.It was July,and there had been a heat wave going on for three days.Luke rushed toward the forest where the fire was sending out a4heat.There was no longer any hope at that moment to wait for Luke to come back to the5. In fact,I was waiting for firefighters to tell me that he had6in the forest.Suddenly,a fireman burst into my office and7me that my log Luke had succeeded in saving four kittens who had been8by the flames.According to the fireman,Luke seized the kittens,one by one moving them to a9place.
I immediately10the fireman to the forest to pick up the rescued kittens.11we got to the scene of the incident,we saw that Luke was not there.Then we heard the12of a dog barking in the forest.I13the barks as Luke's.The fireman followed the14of the dog until they found him barking loudly by the side of an injured fireman who was lying on the ground and15waiting for rescue.
Thanks to Luke,four kittens and a fireman were saved.That day,I was very proud of Luke for his two heroic 16.Luke showed much compassion（同情心）for both animals like him and for a human being who was trying to put out the fire with his colleagues.Truth to be told,my17was immeasurable.
I paid a visit to the fireman in his house accompanied by my lovely Luke.What a18scene it was when the fireman hugged Luke tightly to his chest!"One thousand thanks,Luke,for saving my life,"the fireman said.
This true story of love and compassion shows us that pets are loving,caring and compassionate.We should love and19them.Little animals can do20things for humans.
