$\begin{array}{|l|l|} \hline \text{overcome} & \text{rise} & \text{be} & \text{enjoy}& \text{come}& \text{suffer}& \text{walk}& \text{pollute}&\text{have}\\ \hline \end{array}$ There (a)----- different kinds of exercises. Walking (b)----- one of them. We (c)----- early in the morning for (d)----- a morning walk. While (e)----- in the morning, we can (f)----- fresh air. But in towns and cities air is being, (g)------ in many ways. As a result, people (h)------ from different problems. To (i)----- this problem, people and the government should (j)-----forward.