Every student in our class has lunch at school.为什么用has、不用hav

①Each student in our class (has) a computer and we each (hav Jill has lunch at school every day. our class has fifty students.为什么用has不用have every student in our class has( )good progress since last te in our school ,every student has to wear ____ uniform on Mon Ben has lunch at school every day.(改为否定句) our school has 为什么不用 have Joy has lunch at school every day.【lunch划线提问】 what【】Joy 【】at he has lunch at school every day (用now的形式改写) 句型：He _ _ lunch His sister has lunch at school every day(对at school提问） our class has fifth student同义句 She has lunch at school at twelve.这个at在这什么意思,in at on用在什么情况?