It is Saturday afternoon. Liu Tao and his friend David are taking a walk in the park. There are many public signs in it. They mean different things. Liu Tao know a lot of things about them . Suddenly, They see a short man walking on the grass. Liu Tao points to the sign on the grass and says to him” Sir, look at the sign! You can’t walk on the grass.” The man smiles and says, “ You are right, young man. But I’m the park keeper. I’m looking after the grass.”
(    )⒈It is Saturday afternoon.
(    )⒉The boys can see many public signs in the park.
(    )⒊Liu Tao doesn’t know the things about the public signs.
(    )⒋The man can’t see the public signs in the park.
(    )⒌The man is the park keeper. He wants to take a walk on the grass.

It is Saturday afternoon. Liu Tao and his friend David are taking a walk in the park. There are many public signs in it. They mean different things. Liu Tao know a lot of things about them . Suddenly, They see a short man walking on the grass. Liu Tao points to the sign on the grass and says to him” Sir, look at the sign! You can’t walk on the grass.” The man smiles and says, “ You are right, young man. But I’m the park keeper. I’m looking after the grass.”
(    )⒈It is Saturday afternoon.
(    )⒉The boys can see many public signs in the park.
(    )⒊Liu Tao doesn’t know the things about the public signs.
(    )⒋The man can’t see the public signs in the park.
(    )⒌The man is the park keeper. He wants to take a walk on the grass.