根据所给提示，完成句型转换，每空一词，含缩略词。
(1)Tom won't visit the farm. He'll stay at home. (同义句)
Tom will stay at home visiting the farm.
(2)This dress cost her 100 yuan. (改为一般疑问句)
this dress her 100 yuan?
(3)London held the first World Expo in 1851. (对划线部分提问)
did London the first World Expo?
(4)请安静，我将给大家分发试卷。（完成译句）
Be quiet, please. I'm going to your test paper.
