按要求改写句子

按要求改写句子
1.backpack,not,your,the,is,table,under.(连词成句)
2.(The dictionary) is in the drawer.(对括号部分提问)
3.My pens are (under the English book.)(对括号部分提问）
4.There are some books behind the clock.(改为一般疑问句)
5.It's a nice chair.（改为复数形式)