按要求写句子。 1. When he returns to Paris, he will write to you. (改为同义句) When he ____ ____ to Paris, he will write to you. 2. I'm staying in Shanghai for two months . (对画线部分提问) ____ ____ are you staying in Shanghai? 3. He went to Hong Kong with his fathe r last week. (同上) ____ ____ he ____ to Hong Kong with last week? 4. They are going to Australia for vacation. (同上) ____ ____ they ____ to Australia ____? 5. He sent a postcard to his friend on May Day. (改为同义句) He ____ ____ ____ ____ ____ on May Day.