听第二篇短文，回答小题。
（1）When did Mitchell know about the little rhino（犀牛）？
A.In January 2014.
B.In October 2015.
C.In December 2015.
（2）How did Mitchell help the animal？
A.By sending it to an animal park.
B.By helping it to look for its mother.
C.By giving it food every day.
（3）What did Mitchell do at weekends？
A.He learnt about rhino's life.
B.He took care of the animal.
C.He did a job to get more pocket money.
（4）What is the weight of the rhino now？
A.500 kilos.
B.600 kilos.
C.800 kilos.
（5）Why did Mitchell make a speech to children around the world？
A.To call on（号召）them to save more animals.
B.To share his ways of looking after animals.
C.To ask them to be patient with animals.