They help the police to catch robbers and find lost people f

They help the police to catch robbers and find lost people f dogs can help plice_______(catch)robbers and find lost peopl they h( )the police catch thieves and find missing people The police___people who catch thieves and robbers. the money will be used to help the people.they lost their ho the police help( )to find( )car.用we怎么填 please help the police( ) the man A find to B to find C find The police dogs can help the police catch thieves. people in valley town said they hope the police would catch The people here wanted to know if the police catch the thief It can help people to catch bad people and look after people He thought they were real robbers and started to __________（