Ⅲ.按要求改写下列句子
1.His schoolbag is on the desk.(对画线部分提问)
his schoolbag?
2.My keys are on the table.(改为一般疑问句)
keys on the table?
3.A book is on the chair.(用four替换a改写句子)
Four on the chair.
4.The ruler is in the pencil box.(改为否定句)
The ruler in the pencil box.
5.Are the balls under the bed?(作否定回答)
, .