—        we swim in that river?

—No, you        ．It's dangerous to swim there．

A．Must, can't            B．Can, may not         C．Shall, don't       D．May, mustn't

　　Jimmy lived in the country. He loved playing in the river near his house. The river is not at all deep. So there was no danger（危险）to the kids. But a few weeks ago, his father found a job in a big city, and he moved there with the other two family members: Jimmy and his mother.

　　Their new house had a garden（花园）, but the garden was very small. Jimmy wasn't happy.“Is there a river near here?”he asked his mother on the first morning. His mother smiled,“No, dear. There isn't. But I hear there is a nice park near here. And there is a swimming pool in it. The water in a swimming pool is always clean and you will meet some other children there. We are going there this afternoon.”Jimmy was happy.

　　After lunch, Jimmy and his mother went to the park. Jimmy was surprised to see that the water was very clean. He could see the bottom of the pool. Jimmy wanted to get into the water, but his mother stopped him. She told Jimmy that he should first know something about the swimming pool. She took her son to a sign. It said,“Warning: Children shouldn't swim in this pool. It is dangerous. 7 children have fallen in it.”Jimmy looks into the pool carefully. Then he asked,“Where are they? I can't see them.”

[　　]

[　　]

A．his parents liked to live in big cities

B．there was a swimming pool in the park in the city

C．their new house had a nice garden

D．his father got a job there

[　　]

A．he thought he could play with water in the swimming pool

B．he wanted to play in a new place

C．he was going to see their nice garden

D．he was going to play with his mother

[　　]

A．to take care of the pool

B．not to run about near the pool

C．not to look at the pool

D．the pool is dangerous to children

[　　]

A．Jimmy likes playing in the river.

B．Jimmy's mother knew the swimming pool well.

C．7 people drowned（淹死）in the pool,

D．Surely the sign disappointed（使失望）Jimmy.