专升本考试

【单选题】 According to the passage, you should thank others for their help, because ______.
A．they'll spend m6re time and energy to help you
B．they'll return the favor when needing help
C．they'll think what they've done is worthy
D．they'll make a strong alliance with you

网考网参考答案：C
网考网解析：
最后一段末尾讲到“common good”，与C项的worthy一致。 查看试题解析出处>>