I was late this morning because my alarm clock failed to        .

A．go off      B．go out      C．go away   D．go without

 I was late this morning because my alarm o’clock failed to _______．

       A．go out               B．go away             C．go off                D．go without

Mary was seven years old. Her parents recently moved to a new town, and so Mary was going to a 36   school, which was a few kilometers from the house they lived in now. A school bus going around picked up 37 every morning and brought them back to their  38  every afternoon, and as both of Mary’s parents  39 to go to work, she always went on this bus.

Mary’s parents always 40  their alarm clock for seven o’clock so that none of them would be 41   . But one morning the alarm  42  to go off, and it was not until a quarter past eight that Mary’s mother suddenly 43  , looked at the clock and said, “What’s ever happened to that clock?” and then 44   into Mary’s room to wake her up.

“I’m sorry, dear,” she said, “ 45 you’ll have to wash and dress very quickly, have an even  46 breakfast and then I’ll  47  you to school on my way to the office.”

“But how can you find the   48, Mum?” Mary said, “You’ve been to school only once.”

“Yes,” her mother answered, “but you’ve done the   49   several times now on the bus, so you can be my guide to get there, can’t you?”

“Oh, yes,” said Mary, “I suppose so.” She washed, and  50  and had a quick breakfast, and then they set off. Mary told her mother to turn each time they came to a place she 51  .In this way she made her mother drive round most of the town   52  they got to her school. When they arrived, her mother saw that it was not really very far from her house.

“Why ever did you make me go such a long way round, Mary, instead of the most    53    way?” her mother asked her.

“Well, Mum,” answered Mary, “it was because I didn’t know   54  else to get here. That’s the way our bus always goes to   55   the other children to school.