题目内容

按要求改写句子。
1. Is this a bathtub?(用a shower 改成选择疑问句)
                                                                     
2. He is cleaning the bedroom.(对划线部分提问)
                                                                     
3. This is a refrigerator.(改成复数形式)
                                                                   
4. The sofa is in the living room.(对划线部分提问)
                                                                   
1. Is this a bathtub or a shower?
2. What is he doing?
3. These are refrigerators.
4. Where is the sofa?
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