There is an Eaglish book on my desk改成否定句

There isnt an English book on my desk
只要有 is am are 变否定句就在 后面加not
不明白的再问哟,请及时采纳,多谢!
再问： There are some students in my classroom.改为一般疑问句并作肯定回答 There is a map of the world on the wall.改为复数句子 There are two pens in her pencil-box用two提问
再答： Are there any students in your classroom？ Yes， there are there be 句型 变一般疑问句就把 is are 直接提前就行了 记得 some 要变 any There are some maps of the world on the wall How many pens are there in her pencil-box？