Don’t touch your eyes, nose and mouth, because they aren’t covered by skin and can ________ the virus easily.
-Could I use your cell-phone to make a call, Jake? -Sorry. It __________ in the office.
__________ David says sounds right to Helen. That's why she has made up her mind to leave him __________ happens.
__________ tired I am, I will try my best to finish the important task.
What _______ pity that you must leave now! It is such _______ great fun to have dinner with you.
It was ______ surprise that my first teacher, already 90, was still living and in ________ good health.