根据短文内容判断正误，对的用T，错的用F。
Dogs help people a lot in many ways. In some countries, dogs pull wagons(推车). In the cold north, dogs pull sleds(雪橇). Dogs can help police look for missing people. On farms, dogs take care of sheep in the day and take the sheep home at night. Some dogs work as seeing-eye dogs. Dogs are our good friends.
1．Dogs help people a lot in many ways.
( )2．Dogs can help police look after missing people.
( )3．Dogs take care of sheep on farms.
( )4．Some dogs work as seeing-eye dogs.
( )5．Dogs are our good friends.
( ) 
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