1. This is a pencil case. (变为一般疑问句)
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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 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)
    ________________________________