شرکت در آزمون آنلاین زبان انگلیسی 2 - زبان انگلیسی 2 | آزمون شماره 5946

.Doctors commitment is to dedicate themselves to the health and ...................... of human being

What does the word “this” in the second paragraph refer to?

He knows … Spanish, so we were able to find a nice room in Barcelona and buy the necessary things if we were in need.

Flossing effectively helps to keep your mouth healthy by preventing … .

I haven’t smoked ... a long time, and it’s one week or two that I’ve started to jog in the mornings.