单项选择题 It is inappropriate to ask for a doggy bag when you are a guest.Here，"doggy bag"means（）.

单项选择题 （）do not maintain continuous eye-contact while talking with others.

单项选择题 In（），eye contact remains direct and is the way people show their interest.

单项选择题 In（），keeping eye contact is important during an introduction and for as long as you are being aderssing.

单项选择题 In（）and many other cultures direct eye contact is generally regarded as aggressive and rude.