is it on the desk改成陈述句

is it on the desk改成陈述句 is your book on the desk (陈述句) 1.Is there a present on the desk?(改成肯定句) 2.It's raining now. where the desk on ``that it is My math book is on the desk.改成一般疑问句 there is a pencil sharpener on the desk改成疑问句 There is a computer on the desk改成一般疑问句 there is a storybook on the desk改成否定句 What's on the desk?There is ___pencil on it? 改成否定祈使句.put it on the desk.turn on the light.sweep the floor Is it on your desk,()? Your pen is not h____.It's on the desk.