there are some pens under the chair.怎样变单数句啊?

There are some water and two pens on the desk. There are some pens on the desk.是什么意思? There are some pens (in the pencil case) 划线提问 there (is) some money in the purse,and there (are)two pens in pencil-box对吗 There are some pens on the desk.改为否定句和一般疑问句 are,pens,and,books,there,some,desk,the,on连词成句 there are some pens under the chair.怎样变单数句啊? there are some books and pens in the desk.(否定句） ()3.There are some () on the table.A.pen B.pens C.a pen These pens are().()are over there. 请问There are some pens and rulers in the pencil-box.改为一般疑问句怎么改Are there__ pens __rulers in the pencil-box? 陈述句变一般疑问句 They often sweep the floor My father often read some books.There are some pens i 陈述句变否定句 They often sweep the floor My father often read some books.There are some pens there is something wrong with my watch.改为同义句 there are {some pens} in the pencil ease划线提问 there ____ some pens under the chairs a.is b.are c.three 选哪个,为什么?s...there ____ some pens under the chairs a.is b.are c.three 选哪个,为什么?some 修饰什么? there are()pens in my pencil box There are some pens in the pencil case.(改为否定句)我是白痴我自豪。= = They are some pens,some books but cards