句型转换 （10分)
小题1: I often do the housework on Sundays. （改为否定句）
I the housework on Sundays.
小题2:My name is Peter. （改为一般疑问句,并作肯定回答）
name Peter? Yes, .
小题3:He visits his grandparents three times a month. （对划线部分提问）
he his grandparents?
小题4:His parents like reading newspapers.（对划线部分提问）
his parents like ?
小题5:Kitty looks cute.（对划线部分提问）
Kitty look?
小题6: I like playing football best.
Playing football is sport.
小题7:It’s fun to read English stories. (同义句改写)
English stories fun.
数为k，小球重力为G，平衡时球在A位置，今用力F将小球向下拉长x至B位置，则此时弹簧的弹力为( )
