下图反映的是某种商品的价格和数量的关系，E点为供需价格平衡状态。不考虑其他因素，可推断出下列结论（    ）

—Didn't you go to the zoo last Sunday?    
—_______. I stayed at home all day.

    One night, Mary heard some big1noise.  “Doh, Doh, …”It2 for a few minutes.  Mary went out of her bedroom to search everywhere.  Her parents were sleeping and there were no 3people in the house.  Mary 4 to her bedroom.
    Mary heard the noise again.  She thought, “Is it a cat?  Mike has a cat.  But cats miaow.  They don't make such noise.”
  “Maybe it's a bird5 around and looking for a place to rest.  No! That doesn't make any noise.”
    Maybe it's the whisper of my parents.  They 6 be7in their room.  But that noise wasn't a whisper at all.”
    Mary went to bed again but she heard the noise again. She was 8 and fell 9 her bed. Her legs were10  and she could not climb up any more.