My books are on the bookcase.改成一般疑问句

My books are on the bookcase.改成一般疑问句 Anna's bookS are on the bookcase.一般疑问句 my books are in the bookcase.变一般疑问句 The books are in the bookcase.(改为一般疑问句) There are some books on the bed改成一般疑问句 There are some books in the bookcase 改为一般疑问句 the books are on the bookcase 改一般疑问句 怎么改啊 还有the keys are in My books are on the table(改为一般疑问句） His books are in the bookcase.变为一般疑问句是不是Are his books in the Our books are in the bookcase.(变为一般疑问句） __ __ books in the b there are many books on the teacher's desk.改成一般疑问句 are the books on the bookcase(改为陈述句) my grandpa is fine toda