Fill in the gaps with suitable preposition, articles and zero articles :
Washing hands regularly is (a) — important activity. It keeps us safe (b) — coronavirus. How you wash your hand is also very (c) — important. First, you have to wet your hands (d) — clean, running water and apply soap. Then, rub your hands together with (e) — soap to create foam. Lather the backs of your hands, (f) — your fingers and (g) — your nails. Remember, you have to scrub your hands (h) — at least 20 seconds. After that, rinse your hands well with clean and running water. Finally, dry your hands using (i) — clean towel or tissue paper. Learn the process (j) — washing hands and also educate your friends about it.