Fill in the blanks with suitable prepositions or articles. Some of the blanks may not require a preposition or an article. Put a cross mark (x) in those blanks.

  It is needless to say that washing hands is very important for us. It is certainly (a) ------- important Issue. Washing hands regularly can save us from a kind of infectious disease (b) ------ COVID-19. Washing hands with soap is (c) ------ COVID-19. must. We have to wash hands (d) ------ taking meal and (e) ------ using the toilet. Again, we should wash hands after touching sick members (f) ------ our family and pet animals. Washing hands is also strictly recommended after coming back (g) ----- outside.Washing hands in (h) ----- proper way may help us stay away from coronavirus. (i) ------ reason is that coronavirus spreads through touch. So, it is (j) ----- important to keep our hands clean.