John is ill.改成否定句

John is ill.改成否定句 John comes from Canada . 改成疑问句和否定句 His name is John改成否定句快求你了 That is her backpack 改成否定句 It is my pencil.改成否定句 this is my eraser.改成否定句 this is my ruler改成否定句 That is a UFO.改成否定句 That is my aunt.改成否定句 This is his backpack.改成否定句 This is a pagoda.改成否定句 the tiger is running..改成否定句 the tiger is running..改成否定句 there is a book 改成否定句 it is friday tomorrow 改成否定句 John‘s favourite subject is English（改成同义句） This is our new timetable.改成否定句.英文句 改成双重否定句.