句型转换。
1. Is it in the backpack?(作否定回答)
________,it ________.
2. Tom's maths book is on the floor.(对画线部分提问)
________ ________ Tom's maths book?
3. His baseball is under the table.(改为一般疑问句)
________ ________ baseball under the table?
4. His dresser is next to his bed.(改为否定句)
His dresser ________ ________ next to his bed.
5.My keys are on the sofa.(对面线部分提问)
________ ________ my keys?
