The baseball are on the sofa.(改为一般疑问句,并作肯定回答） 后面还有几道

The baseball are on the sofa.(改为一般疑问句,并作肯定回答） 后面还有几道 The baseball is under the chair.（改为一般疑问句并作肯定回答） （ ）the baseb They are on the bed.改为一般疑问句,并作肯定回答 the keys are on the sofa 改为一般疑问句 并做否定回答 The students are cleaning the classrook(改为一般疑问句并作肯定和否定回答） They are on the sofa. (改成一般疑问句,并作否定回答) Her books are on the sofa变一般疑问句并作否定回答 There is a pencil on the desk?（改为一般疑问句并作肯定回答） （1）They are on the bed（改为一般疑问句,作肯定回答） His pencils are in the schoolbag（改为一般疑问句,并作肯定回答） Our books are on the desks.(改为一般疑问句并做肯定回答）） There is some beef on the the 改为一般疑问句,并作肯定回答