根据短文内容，判断下列各句正误。正确的在题前括号内写“T”’错误的写“F”。
Hong Kong has about forty public beaches. Some of them are very famous around the world. People can go
there for a swim. You can go there by bus. To go to some beaches you must take a boat.
You will swim there without danger if you remember these instructions:
★ Never swim alone.
★ Never go out in a boat if you cannot swim.
★ Never swim after a meal or when you feel hungry or tired.
★ Don't stay in the water too long.
Remember: A red flag means that it is dangerous for anybody to go into the water. A blue flag means that it is dangerous for children.
( ) 1. There are about 40 public beaches in Hong Kong.
( ) 2. You should swim after a meal.
( ) 3. You can take a bus to go to most of the public beaches.
( ) 4. You'd better swim when you're alone.
( ) 5. If you were a child, you could swim when you saw a red flag.
