Choose the correct word. 1. London's Tower Bridge dates from/back 1894. 2. We had lunch at a nice restaurant in/on the bank of the River Thames. 3. The bell at the clock at the north end of the Palace of Westminster is commonly known as/for Big Ben. 4. Carlos is surfing the Net to find about/out information on the sights of London. 5. London's Tower Bridge opens up/out so that boats and ships can pass under it.