not, is, my, it, backpack (连词成句)
________________________________

1. This is a pencil case. (改为一般疑问句)
                                                        
2. Is that her baseball? (否定回答)
                                                        
3. not, is, my. it, backpack(.)(连词成句)
                                                       
4. This is a pen in English.(对画线部分提问)
                                                       
5.It is a ring. (改为否定句)
                                                      

1.This is a pencil case. (变为一般疑问句)
________________________________
2.Is that her key? (否定回答)
________________________________
3. not, is, my, it, backpack (连词成句)
________________________________
4.This is a pen in English. (对画线部分提问)
________________________________
5.It is a ring. (对画线部分提问)
________________________________

1. This is a pencil case. (变为一般疑问句)
    ________________________________
2. Is that her key? (否定回答)
    ________________________________
3. not, is, my, it, backpack (连词成句)
    ________________________________
4. This is a pen in English. (对划线部分提问)
    ________________________________
5. It is a ring. (对划线部分提问)
    ________________________________