(单选题)

What is the main purpose of the passage?

A.To teach readers how to shop online.

B.To show readers how to bargain with customer services.

C.To instruct readers how to boost brick-and-mortar stores.

D.To tell readers how to save money when shopping online.

参考答案：D

参考解析：

主旨大意题。根据第一段最后一句“there are some tricks that you can use to save a few bucks the next time you purchase something online.”可知，文章讲的是网购时有哪些省钱小技巧。故选D。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语