1. This is a pencil case. (变为一般疑问句)
________________________________
2. Is that her key? (否定回答)
________________________________
3. This is a pen in English. (对划线部分提问)
________________________________
4. It is a ring. (对划线部分提问)
________________________________

1. This is a ruler.(就划线部分提问)
   _____ this _____ _____?
2. My mother is fine. (就划线部分提问)
                                           
3. This is a pen in English. (对划线部分提问)
    ___________________

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)
    ________________________________