he is having lunch改为否定句

he is having lunch改为否定句 1.He is having lunch.(改为否定句） He __ __ having lunch. they are having lunch now.改为否定句 1 He is watching ants 改为否定句,2 they are having English class after lunch he has math.(改为否定句) 改为一般疑问句及否定句：1.He had dinner at 6 last night.2.He is having a It is time for lunch.改为否定句 He is cook noodles .改为否定句 He is a boy 改为否定句 He iS a teacher.改为否定句 He is Zhou Weilun(改为否定句) He is Bob.改为否定句