Harry is eighteen now. He studies in a middle school. His parents like him very much and hope he can become a famous man. So they often tell him to study hard and they do all for him. They call him at six in the morning, after breakfast his father takes him to school in a car and in the afternoon, as soon as the young man comes back, the supper is ready. Of course, he never washes his clothes or goes to buy something in the shops. Once, Harry's father was sent to London on business. He would stay there for half a year. Leaving, he told his wife to take good care of their son. The woman had to get up earlier and did all what her husband did before. And two months later she was so tired that she was ill in bed. Now the young man got into trouble. He couldn't do any housework. He had to do as his mother told him. Even he didn't know where to get on the bus! Yesterday Harry's mother found his shoes were worn out and told him to buy a new pair in the shop. But he didn't know how to choose. The woman had a sigh  and gave him a shoe pattern  and told him to buy a pair of shoes himself. It's Saturday today and Harry doesn't go to school. With a policeman's help, he found a shop. The shopkeeper was friendly to him. The man brought a lot of shoes and asked him to choose. When he was trying on a pair, suddenly he remembered something and took them off. The man was surprised and asked, "What's the matter, young man?" "I'm sorry, I've left the shoe pattern at home!" The woman told her son to buy a pair of shoes because   _  .
she didn't know what kind he needed she was busy with the housework something was wrong with her she wanted her son to do something himself