1. They spent three years building the bridge.(改为同义句)
    It ______ ______ three years ______ _______ the bridge.
2. Lucy can't speak Chinese or French.(改为同义句)
    Lucy can speak ____ Chinese ____ French.
3. They have never been to Shanghai, _____ ______? (完成反意疑问句)
4. Both Tom and Bob want to have a big one.(改为否定句)
    ____ Tom ____ Bob ____ to have a big one.
5. Let us go to school together, _____ _____? (完成反意疑问句)