1.听下面的一段独白,回答第 4~6 三个小题
4.How many police horses do the police in New York have?
A.117
B.170
C.710
5.Which of the following is more expensive?
A.Riding the horses
B.Feeding the horses
C.taking care of the horses
6.What can we learn from the talk?
A.It's traditional way for the police to ride a horse while working.
B.Every police horse in New York gets new shirts every month.
C.There are 35 blacksmith (铁匠) in New York.