题目内容：

    My mother is fifty-five years old. She retired (退休) just two months ago. After that, she was bored and didn't know what to do every day. She was kind to us before, but recently she was easy to get angry. She often argued with my brother and me with no reason. Also, relations between my parents became difficult. My mother got into trouble and didn't know how to deal with it. My brother thought of a good idea to help my mother. He bought her a new smart phone and taught her how to use Wechat (微信). My mother's life changed a lot from then on. No matter where she went and whatever she did, she always used it. She took photos with her new smart phone and always shared her photos in her friend circle to express how happy she was. As a result，she often did something by mistake. She often forgot to turn off the gas (煤气) and the food she was cooking usually got burnt. My father tried to stop her, but it didn’t work.

This afternoon, my mother prepared to make dumplings for dinner. She took a lot of pictures in order to post them into her friend circle. After dinner, we took out smart phones and waited to the photos she had taken. To our surprise, we didn't find any pictures of her dumplings. At last, my father couldn't help asking her, “Why don't you share your delicious dumpling in your friend circle today?” My mother looked embarrassed and said, “My smart phone was boiled in the pot.” “Oh, my God! I have to spend more money buying a new one!” cried my brother.

1.What is the matter with the writer's mother after she retired?

A.She got angry easily. B.She argued with one of her friends.

C.She cared about her children too much. D.She had a bad relationship with her parents.

2.How did the writer’s brother help his mother?

A.He took photos for his mother. B.He cooked some food for his mother.

C.He taught his mother how to use the gas. D.He bought his mother a new smart phone.

3.What happened after the mother began to use Wechat?

A.She often forgot to cook dinner. B.She felt it difficult to use Wechat.

C.She enjoyed using Wechat very much. D.She did not know how to turn off the phone.

4.Why didn't the mother share the dumplings in her friend circle?

A.She had no time to take pictures. B.Her phone was dropped in the pot.

C.Her family didn't like the dumplings. D.She waited to do it with her new phone.