He is an old doctor with a lot of ________. But he has never travelled by air before.Taking a plane was quite ________ experience for him this time.

There’s a(n) ___ of peace and calm in the countryside, completely different from that in the city. 

The tomato juice left a brown_____ on the front of my jacket.

It was difficult to guess what her _____ to the news would be.

. ---Why do you say that the doctor is in a _______? ---Because he doesn’t know whether to tell the patient the truth or not.