A. It is used by people to encourage those who are confronted with danger
B. It is used to show that one is enthusiastic and hospitable
C. It is used to create a more friendly atmosphere and to avoid embarrassment
D. It is used by people to protect others in the threatening situation
A.making both others and yourself feel at ease
B.excluding those you don’t like from joining you
C.keeping your voice low so only your friends can hear you
D.comforting those who feel lonely
A. the money borrowed from banks
B. the money spent to promote sales
C. the money raised from close friends
D. the money needed to start a business