阅读短文，判断正误,正确的用“T”表示,错误的用“F”表示。
People like dogs.
Some dogs are big. Some dogs are small. Dogs can be black or gray or brown or white. Some dogs have spots(斑点). Dogs waggle their tails when they are happy.
Dogs eat meat and dog food. They like bones, too. Some dogs eat dog biscuits. They eat very fast. They need to drink a lot of water.
Some dogs are working dogs. Some dogs work for the farmers. Some dogs work for the blind(盲人). Some dogs work for the police. Working dogs help us a lot. They are our friends.
（1）Dogs are all big.
（2）Dogs waggle their tails because they are very hungry.
（3）Dogs like to eat meat, dog food, bones and fruit.
（4）Dogs need to drink a lot of water and juice.
（5）Some dogs can help the police officers.