A、One. B、Two. C、Three. D、Four. BHow many stories does Mary’s house have?问Mary家的房子有几层，B为正确答案。

M: Where are you living now, Mary?
W: We are living on Main Street.
M: Do you like your new house?
W: Yes, we do. At first we meant to buy a one-story house.
M: Do you mean you are now living in a two-story house?
W: Yes, and we preferred that way.
M: Do you have a nice yard?
W: Of course. Although it’s not very big, We have enough room for flowers.
M: You enjoy gardening, don’t you?
W: Yes, I do. And my husband does, too. We like to have roses in the yard.