提问there are some books and pens 为什么用（what are there/what is） on the table?there be 句型为啥用单数,这里的 what are there怎么等于 what is了?

there are some water in the bottle.对some提问 There are some vegetables on the table.对some提问 there are some cookies in the bag 对some 提问 There are some apples in the basket.(对some提问) There are some boys running in the playground.对some提问,对some boys提问 There are some apples on the tree对 There are some apples 进行提问 There are some rulers on the desk.(划线提问) There are some pens (in the pencil case) 划线提问 There are some birds in the tree.对what提问 （There are some ducks ）in the river.划线提问 There are （some apples）here对括号内提问 There are (some flowers) in the vase对括号There are (some flowers) in the vase对括号里提问 There are some flowers on the teacher's desk.There are some flowers划横线 （对划线部分提问） There are some flowers on the teacher's desk.There are some flowers划横线 （对划线部分提问） There are some cards over there.（some cards划线）（对划线部分提问）（） （） over there. you are my boo中的boo是什么意思?一首韩文歌叫boo!IU唱的 其中 you are my boo中的boo是什么意思? there are some toys in the shop.就some toys 提问 There are some books in the bookcaes对some books 提问