Wangari Maathai understood how important trees are (1) _______ the future of the world ever since she was a little girl.

… unless the artist is so good that he gets a large crowd around him and this (5) ______other people from passing freely along the street.

The police usually trick pavement artists kindly and there is nothing in the law against (4)___________on the pavement…

… one of the artists’ favourite tricks is to draw a five pound note and see a lot of people trying to (3) ________it up. 

This is proved (2)_________the fact that…

Artists who draw pictures on the pavement with chalk (1) _______a very common sight in London, but there are only a few left now.

Artists who draw pictures on the pavement with chalk (1) _______a very common sight in London, but there are only a few left now.

Your family can also spend only one Saturday morning (5) __________month collecting rubbish in your neighbourhood.