There are thirty women teachers in our school.这句话的主语是什么?

There are thirty-five there are thirty-five students in my Are there thirty-one days in April? There are( )days in January.A:thirty B:thirty-first C:thirty-one there are thirty students in our class.(对there提问) There are thirty students in my class改为疑问句 there are -thirty--- students in the ciass.对划线提问 There are thirty students in my class.的否定句? There are thirty girls in the classroom根据答句写问句 There are (thirty)days in June.对括号部分提问. there are (thirty)teachers in this school.对括号提问 There are thirty-three toy trains in the tree.翻译 There are thirty-two rooms in this building改为问句 There are thirty-five students in our class.中对 thirty-five students提问,怎么回答? There are twelve months----a year and there are usually thirty days------a month需要理由 There are twelve months----a year and there are usually thirty days------a month需要 理由 there are ( ) months with ( ) days in a year.there are ( ) months with ( ) days in a year.A:twelev;thirty-one B:eight;thirty-oneC:seven;thirty D:four;thirty答案是D为什么?为什么不是A? There be后面能否再接动词原形?.例如:There are thirty women teachers is our school.