改成同义句。 1. Kate can't work out the math problem, I think. I ______think Kate ______work out the math problem. 2. He doesn't know either Russian or French. He knows ______ Russian______ French. 3. To talk loudly in public is rude. ______ ______ ______ talk loudly in public. 4. 'You can't smoke any more,' the doctor said to him. He was ______ ______ ______ ______ smoking. 5. Students go to English clubs. They want to practice their English. Students ______want to practice______English go to English clubs. 6. 'Did you water the trees?' his wife said to him. His wife asked him ______ ______ ______the trees.