1.Kitty leaves home at seven o'clock in the morning.(改一般疑问句）
Does Kitty leave home at seven o'clock in the morning?
2.Ben plays chess with his grandparents (once a week).(对打括号的提问）
How often does Ben play chess with his grandparents?
3.My mother likes (the blue)sweater.(对打括号的提问）
Which sweater does your mother like?