Here are some signs in our daily life. We should pay attention to them in public places.

（1）The first sign tells us that we can not 　    　in the area.

A．	walk dogs
B．	talk about dogs
C．	play with children

（2）Which sign might we see at a gas （汽油） station？ 　    　

A．
B．
C．

（3）What does the third sign mean？ 　    　

A．	There is no water.
B．	The water is not safe.
C．	We should save water.

（4）When we see the fourth sign，we should not 　    　.

A．	talk loudly
B．	stop walking
C．	enter the area

（5）What can we learn from the signs above？ 　    　

A．	Children can't play with dogs.
B．	Smoking is not allowed anywhere.
C．	We should follow rules in our daily life.