the clock is on the desk.the math book is on the desk,too.合并

the clock is on the desk.the math book is on the desk,too.合并 My math book is on the desk.改成一般疑问句 the book is on the desk. There is alarm clock on the desk. is your book on the desk (陈述句) -----book on the desk is ----useful one is there a book on the desk? My book is on the desk the book on the desk 和the book is on the desk 哪句是对的·? The clock is on the desk beside the bed A book is on the desk和On the desk is a book A clock is on the desk.对A clock提问