there are some knives in the pencil-box.变否定句、一般疑问句并作肯定和否定回答,

来源：学生作业帮助网编辑：六六作业网时间：2024/10/04 18:39:53

therearesomeknivesinthepencil-box.变否定句、一般疑问句并作肯定和否定回答,therearesomeknivesinthepencil-box.变否定句、一般疑问句并作

there are some knives in the pencil-box.变否定句、一般疑问句并作肯定和否定回答,
there are some knives in the pencil-box.变否定句、一般疑问句并作肯定和否定回答,