Childrens favourite place in London is ________(St Pauls Cathedral,Big Ben,Hamleys). Astana is famous for its ________buildings (tall,modern,old). _________is a big problem in big cities (building,pollution,traffic lights). Theatre,concert hall,factory are ______.The _______of Almaty is about two million people.

1)Big Ben
2)Modern
3)Pollution
4)----
5)Population