Read the following passage and answer questions

It was Seryozha's birthday, and he received many presents: tops, hobby-horses and picture books. But the best gift of all was from his uncle. It was a net for catching birds.

A little board was attached to a frame on which a net was stretched. Grain was sprinkled on the board, and then the net was set out in the yard. When a bird flew up and perched on the board, the board would turn over and the net would fall.

Seryozha was so happy he came running to his mother to show her his net.

His mother said, "It's not a nice toy at all. What do you want with little birds? Why do you want to torment them?"

"I'll put them in cages. They'll sing, and I'll feed them." Seryozha got some grain, sprinkled it on the little board and set the net out in the garden. He stood next to it, waiting for birds to come flying down. But the birds were afraid of him and did not come near the net.

Seryozha went in to dinner and left the net in the garden..

When he came to look at it after dinner he saw that the net had fallen and a little bird was thrashing about under it. Seryozha was very excited. He caught the bird and took it into the house.

"Look, Mamma! I've caught a bird. It must be a nightingale. Oh, how fast its heart is beating."

His mother said, "It's a siskin. Don't torment it. Let it go."

"No, I'll feed it and care for it."

Seryozha put the siskin in a cage, and for two days he fed it grain, changed its water and cleaned the cage. On the third day he forgot about the siskin and did not change its water.

Then his mother said to him, "See? You forgot all about your little bird. I think you had better let it go."

No, I won't forget. I'll give it some fresh water now and clean the cage."

Seryozha stuck his hand into the cage and began cleaning it, but the siskin became frightened and beat its wings against the cage. Seryozha cleaned the cage out and went for water.