商品的价格围绕商品的（）自发波动。
A. 价值
B. 使用价值
C. 货币
D. 交换价值
In China, the word “friend” refers to__________.
A. a casual acquaintance
B. a few people who are very close
C. people doing sports with
D. people in the same circle
What kinds of presents should be avoided to send to the westerners?
A. money
B. clock
C. umbrella
D. underwear
People in the English-speaking countries feel uncomfortable accepting _____ as gifts.
A. delicate china
B. inexpensive novelties
C. luxurious jewels
D. rare flowers
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