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句型转换。 1. Are you ready for a quiz? (肯定回答) __________________________________________________________________. 2. Mr. Smith is washing the dishes . (对划线部分提问) __________________________________________________________________? 3. This is a bathtub, a shower. (变选择疑问句) __________________________________________________________________? 4. These dishes are clean, dirty. (变选择疑问句) __________________________________________________________________? 5. Is this a refrigerator or a stove? (回答stove) __________________________________________________________________.