Question 12 The staff at the youth hostel say:
A: Coffee is seven yuan.
B: Coffee is free.
C: Cola is free.
A: Coffee is seven yuan.
B: Coffee is free.
C: Cola is free.
举一反三
- “Buy one get one free” means that consumers buy two products for free.
- “Buy one get one free” means that consumers buy two products for free.（ ）
- ( ) are free of use. A: coffee bag B: tea bag C: water D: potato chips
- Economist often say there is no such thing as afree lunch. What do economists mean whenthey say such a thing? A: Economists,in this case, are talking about common resources. B: Someresources cause significant negative externalities. C: Even ifsomeone literally offers you a free lunch, there is an opportunity cost to theresources that are used to produce your free lunch. D: Peoplenever offer a lunch for free.
- Tom: How long have you worked in this department John:______. A: The atmosphere in this department is free. B: Seven weeks ago. C: Just about six months. D: You can say it again.