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.