___ to danger and conflict, men tend to increaseblood pressure, ______ nervous and anxious.

She is a vegetarian. She will __________ ifyou mention eating meat in front of her.

It’s ______ of you to bring me some fruit. —My pleasure. Please make yourself at home, sir.

________ by the problem that was put forward at the meeting, the people in the audience had________ looks on their faces [ ]

You won’t pass the exam _____ you don’t work hard.