同义句转换。 1. The stone is so heavy that I can't lift it up. It is ______ a heavy stone ______ I can't lift it up. 2. As is known to us, traditional folk arts of Tianjin like the scissor-cut are being exhibited at the culture show of the 2010 Shanghai World Expo. ______ is known to all is ______ traditional folk arts of Tianjin like the scissor-cut are being exhibited at the culture show of the 2010 Shanghai World Expo. 3. Along the way children who were dressed in long wool coats stopped to look at us curiously. Along the way children ______ ______ long wool coats stopped to look at us curiously. 4. We'll reach the beautiful place, and there our friends can't wait to see us. We'll reach the beautiful place ______ our friends can't wait to see us. 5. With time going on, the weather became worse and worse. As ______ ______ ______, the weather became worse and worse.