1.can your father play volleyball (作否定回答) 2.Bill can sing (改
1.can your father play volleyball (作否定回答) 2.Bill can sing (改为否定句) 3.The girl is watching television (改为一般疑问句,并作肯定回答) 4.The boy is eating a cake (改为一般疑问句,并作否定回答) 5.Is lisa walking her dog?(改为肯定句)