Sit on the desk变为否定句

Sit on the desk变为否定句 Sit on the desk,please.如何改为否定句 The are some magazines on the desk变为否定句? 把下面的祈使句变为否定句.1.Give me four stamps,please.2.Sit on the desk,please.3.Look at me. There are some flowers on the teacher’s desk.(变为否定句)There ( )( ) flowers on the teacher’s desk. There is a book and a pen on the desk.(变为否定句) Give me four stamps, please.改成否定句Sit on the desk, please.改成否定句Look at me.改成否定句 put the pens on the desk .(变为否定句） ————— ——————— the pena on the desk. 英语肯定变否定把Sit on the desk ,please 改为否定 The keys are on the desk(改为否定句) The keys( )( ) on the desk. Put the book on the desk.(改为否定句） Are the books on the desk?改为否定句 The math books are on the desk.改为否定句 改为否定句,The math books are on the desk. 改为否定句 The math books are on the desk. The math books are on the desk.改为否定句 I am your friend.变为否定句 You are in the classroom.变为一般疑问句 The baseball is on the desk.I am your friend.变为否定句You are in the classroom.变为一般疑问句The baseball is on the desk.变为一般疑问句Nancy is jack's 英语祈使句改否定句1.Give me four stamps,please.______________________________2.Sit on the desk,please.__________________________3.Look at me._____________