Fill in the gaps with suitable preposition, articles and zero articles:

Washing hands regularly is (a) ----  important activity. It keeps us safe (b)---- corona-virus. 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) ----- Remember, you have to scrub your hands (h) ------ at least 20 your nails. 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.