问题
单项选择题
听句子，缩写原文。（）
A．We cannot reach an agreement, let alone a spoken promise.
B．We’d better draft and then sign a written agreement.
C．We generally keep our promises in business transactions.
D．We hope you understand why we are unable to keep our promises.
答案
参考答案：B
解析：
[听力原文] To avoid misunderstanding and legal problems in the future, spoken promises are usually not enough for such an important business transaction.