[originaltext] Even the most enthusiastic shopper has a bad day sometimes: (

Even the most enthusiastic shopper has a bad day sometimes: (29)You can’t find what you want, every second person in the crowd seems intent on bumping into you, and your legs are aching from hip to toe. It’s at times like these when the much-touted convenience of shopping over the Internet sounds like a better alternative. Like bargain hunters in the real world, however, online shoppers need to be aware of the traps in order to enjoy the benefits of e-commerce. For most, (30)the main concern is the invisibility of whoever is on the other end of the transaction. Those walking into the cyber market armed only with a credit card and an active imagination need to follow a few guidelines. The golden rule in purchasing anything over the Internet is to find out who you are dealing with. The first step is to make sure the company is legal and has clearly stated sales and security policies, which should be easy to access on its website. Of course, it is essential that the firm can guarantee the security of personal information and credit card numbers. Buyers should also pay close attention to the terms and conditions of sale, such as whether there are any hidden extras in the form of delivery costs. (31)Otherwise, you may end up being charged more than you bargained for. Practically anything can be bought online and, provided the appropriate caution is exercised, Internet shopping can be a rewarding alternative to trudging through the stores. So sit back, log on, and save the workout for the gym.
29. Why does the speaker think shopping online is a better choice?
30. What’s the most worrying thing about e-commerce?
31. What’s the possible consequence if we don’t pay attention to the terms and conditions of sale?