A walk by the riverside in the evening (a) — very useful and pleasant. One (b) — not only beautiful sight but also (c) — fresh air. It (d) — the mind when one (e) — a walk by the river-side. Bangladesh is a riverine country and you can (f) — yourself of this opportunity of (g) — by the river side. In the cities there are parks where you can go for a walk. This will help you (h) — fit. But if you (i) — it regularly, you will not be able to (j) — the benefit.