Joe and Helen Mills had two small children. One was six and the other four. They always refused to go to bed, and Helen was always complaining about this and asking Joe for help. But as he did not come home until after they had gone to bed during the week, he was unable to help except at weekends.

    Joe considered himself a good singer, but really his voice was not at all musical. However, he decided that, if he sang to the children when they went to bed, it would help them to relax, and they would soon go to sleep.

    He did this every Saturday and Sunday night until he heard his small son whispered to his younger sister, “If you pretend that you’re asleep, he will stop.”

50. The children always refused to go to bed, which_______.          .

A. made Helen happy a lot        B. satisfied their mother

C. Helen was not satisfied with      D. gave Helen much encouragement.

51. The husband couldn’t help the wife to look after the children_______.        .

A. because he returned from work too tired   

B. since his voice sounded like a singer’s

C. except on Saturday and Sunday

D. for he did not like his children..

52. Which of the following conclusions can we draw from the above story?

A. Joe’s song did help the children to relax.

B. With Joe’s help, the children went to sleep.

C. The wife must be thankful to her husband for the great help.

D. The children were so tired of their father’s voice that they pretended to be asleep.