let's sit under the tree改为否定句

let's sit under the tree改为否定句 let’s【】under the tree There are three boys under the tree 改为否定句 let"s ( ) under the tree.A sitting B sit C tosit D sits there's a man under the tree,改为复数句 1.The man under the tree must be Mr Green.（改为否定句） He often read English under the tree when he was young.改为否定句 there is a car under the tree 改为否定句 怎么改 快 Let's take the green one.（改为否定句） Let's clean the room now.改为否定句 Let’s see the pandas first.改为否定句 Let’s move the furniture.（改为否定句）