题目内容：
The major difference between the mail service of the 1840s and that of today is thatA. the sender paid the cost
B. the receiver paid the cost
C. the postmaster sent the letter
D. a friend sent the letter to the receiver
参考答案：
选择题：The major difference between the mail service of t
- 题目分类：乐山师范学院第二外语(英语）.
- 题目类型：选择题
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A. the sender paid the cost
B. the receiver paid the cost
C. the postmaster sent the letter
D. a friend sent the letter to the receiver