Open the pencil box.（改为否定句 Don’t sit down,please.（改肯定句）
问题描述：
Open the pencil box.（改为否定句 Don’t sit down,please.（改肯定句）
There is（a wallt）on the floor.（对括号提问）
There are fifty chairs in the art room.（改一般疑问句,并作否定回答）
They sit （behind us）.（对括号提问）
Lily is in class （One ）Grade Six.（对括号提问）
答
1.Don't open the pencil box.2.Sit down,please.3.What is on the floor?4.Are there fifty chairs in the art room?No,there aren't.5.Where do they sit?6.Which class of Grade Six is Lily in?