Recently I took part a geography research study group. Our topic   1.  
is environmental pollution and protection.We took a variety          2.   
of pictures showed the present pollution conditions of our city. To     3.  
our surprised, there are still a lot of people doing silly things to our    4.  
surroundings. Some people throw rubbish anywhere where they like;   5.  
somecars give off harmful gases and waste water are poured into the   6. 
riversby some factories. Worse still, people sometime have to make   7. 
themway through dusty winds as a result of the the pollution. Through   8. 
our research, we come to know that everybody must pay more attention  9.   
to our environment and some measure should be taken                10.