The Thames in London has 27 bridges.的首字母填空

London's River Thames has twenty-seven bridges.But Tower bridge.the first bridge over the Thames a_______ you travel to London from the sea,is the most f_____of them all.What makes Tower Bridge so exciting?W_____ do visitors come from all over the world to s_____ it?
The thing that is surprsing about Tower Bridge is that it is o_____ in the middle.It does this to l_____ the big ships through to the pool of London.If you are l_____ enough to see the bridge with its two opening arms high in the air.you will never f____it
as/ famous/ why/ see/ open/ let/ lucky/ forget