Use -s where necessary 1)more than twenty tourists come to great britain every year. 2)kings cross railway station appeared in london about a and sixty years ago 3) of tourists come to london every day. 4) the themes is theree and forty-six kilometres long 5) there are two and fourteen bridges over the thames 6) you can see of wonderful paintings in the national gallery.
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Обычно перед ''of'' ставиться окончание "-s".