Fill in the gaps with suitable prepositions, articles and zero articles (a, an, the or x):

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)_________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.