signs do you have here?

In the classroom,

We should.

We shouldn't.

cansee in the middle?

    Today is Sunday. Bob goes to the zoo with his friends. He climbs up the wall to see the tigers and lions. A zookeeper shouts at him, "Don't do that. It's dangerous." He tries to touch the bear in the cage. A zookeeper shouts, "Don't touch it. It is dangerous." He wants to catch the ducks in the pool. A zookeeper shouts, "Stop! It's dangerous." Bob comes back home sadly. His mother asks him, "How's the zoo today?" Bob says, "It's no fun. Everything is dangerous!"