问题补充：
--- Bill, can I get you anything to drink?
--- .
A. You are welcome
B. No problem
C. I wouldn mind a coffee
D. Doesn’t matter
答案：
A. You are welcome
B. No problem
(答案→)C. I wouldn mind a coffee
D. Doesn’t matter
解析：A是不用谢的意思，比如，你感谢某人帮了一个忙thank you for helping me...，对方可以说不用谢“you are welcome”。而题目是别人帮比尔拿东西，这个话不应该是比尔说。答案B是“没问题”的意思，比如你想请别人帮个忙“could you help me with the homework?”对方如果想帮忙的话就会说“no problem”。答案C是“来杯咖啡吧“，符合题意。答案D是”没关系“，比如你向对方道歉”Im sorry that I broke your glasses“,对方可以说”it doesn matter“
