1. Maria has some friends here. (改为否定句)
    ____________________________.
2. The letter is from my pen pal. (对划线部分提问)
    ____________________________.
3. by, what, way ,he ,the, does, say, in ,letter, the (连词成句)
    ____________________________.
4. He lives in Brazil. (对划线部分提问)
    ____________________________.
5. What's this? It's a toy. (改为复数形式)
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