Some can never go above 4000 meters, because their body is unable to ___________ these extreme conditions.
--- You don't seem to be quite yourself today. What's wrong?--- Oh, I'm suffering from a cold. Nothing serious, _____.
— No one answered when I phoned this morning. Where were you?— I for teeth in the dental clinic.
— Will you be this afternoon, John?— I am afraid not. I have an appointment with my dentist.
—How do you find out about the latest fashions, Alice?—In the magazines like Rayli. That’s clothes companies usually advertise.
In_____ communication, a smile is usually _____ strong sign of friendly attitude.